40615452 has 48 divisors (see below), whose sum is σ = 106412320. Its totient is φ = 13395456.

The previous prime is 40615451. The next prime is 40615481. The reversal of 40615452 is 25451604.

40615452 is a `hidden beast` number, since 4 + 0 + 615 + 45 + 2 = 666.

It is a super-2 number, since 2×40615452² = 3299229882328608, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40615451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8538 + ... + 12414.

Almost surely, 2^40615452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40615452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53206160).

40615452 is an abundant number, since it is smaller than the sum of its proper divisors (65796868).

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

40615452 is a wasteful number, since it uses less digits than its factorization.

40615452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987 (or 3979 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40615452 is about 6373.0253412332. The cubic root of 40615452 is about 343.7402830532.

The spelling of 40615452 in words is "forty million, six hundred fifteen thousand, four hundred fifty-two".