40196520 has 256 divisors, whose sum is σ = 165312000. Its totient is φ = 8460288.

The previous prime is 40196503. The next prime is 40196521. The reversal of 40196520 is 2569104.

40196520 is a `hidden beast` number, since 4 + 0 + 1 + 9 + 652 + 0 = 666.

It is a super-2 number, since 2×40196520² = 3231520440220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40196521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98076 + ... + 98484.

It is an arithmetic number, because the mean of its divisors is an integer number (645750).

Almost surely, 2^40196520 is an apocalyptic number.

40196520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40196520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82656000).

40196520 is an abundant number, since it is smaller than the sum of its proper divisors (125115480).

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

40196520 is a wasteful number, since it uses less digits than its factorization.

40196520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 40196520 is about 6340.0725547899. The cubic root of 40196520 is about 342.5543487377.

The spelling of 40196520 in words is "forty million, one hundred ninety-six thousand, five hundred twenty".