40436770 has 64 divisors (see below), whose sum is σ = 83026944. Its totient is φ = 14051520.

The previous prime is 40436749. The next prime is 40436777. The reversal of 40436770 is 7763404.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40436777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392539 + ... + 392641.

It is an arithmetic number, because the mean of its divisors is an integer number (1297296).

Almost surely, 2^40436770 is an apocalyptic number.

40436770 is an abundant number, since it is smaller than the sum of its proper divisors (42590174).

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

40436770 is a wasteful number, since it uses less digits than its factorization.

40436770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 40436770 is about 6358.9912722066. The cubic root of 40436770 is about 343.2354629344.

The spelling of 40436770 in words is "forty million, four hundred thirty-six thousand, seven hundred seventy".