396250785 has 160 divisors (see below), whose sum is σ = 869806080. Its totient is φ = 168676992.

The previous prime is 396250783. The next prime is 396250793. The reversal of 396250785 is 587052693.

It is a happy number.

396250785 is a `hidden beast` number, since 3 + 9 + 62 + 507 + 85 = 666.

It is not a de Polignac number, because 396250785 - 2¹ = 396250783 is a prime.

It is a super-4 number, since 4×396250785⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 396250785.

It is not an unprimeable number, because it can be changed into a prime (396250783) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3847044 + ... + 3847146.

It is an arithmetic number, because the mean of its divisors is an integer number (5436288).

Almost surely, 2^396250785 is an apocalyptic number.

396250785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

396250785 is an abundant number, since it is smaller than the sum of its proper divisors (473555295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396250785 is a wasteful number, since it uses less digits than its factorization.

396250785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 396250785 is about 19906.0489550287. The cubic root of 396250785 is about 734.4970319857.

The spelling of 396250785 in words is "three hundred ninety-six million, two hundred fifty thousand, seven hundred eighty-five".