40459452 has 24 divisors (see below), whose sum is σ = 102988032. Its totient is φ = 12260400.

The previous prime is 40459423. The next prime is 40459457. The reversal of 40459452 is 25495404.

It is a super-2 number, since 2×40459452² = 3273934512280608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40459457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153124 + ... + 153387.

It is an arithmetic number, because the mean of its divisors is an integer number (4291168).

Almost surely, 2^40459452 is an apocalyptic number.

It is an amenable number.

40459452 is an abundant number, since it is smaller than the sum of its proper divisors (62528580).

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

40459452 is a wasteful number, since it uses less digits than its factorization.

40459452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306529 (or 306527 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 40459452 is about 6360.7744811461. The cubic root of 40459452 is about 343.2996274030.

The spelling of 40459452 in words is "forty million, four hundred fifty-nine thousand, four hundred fifty-two".