40454025 has 36 divisors (see below), whose sum is σ = 68473296. Its totient is φ = 21072800.

The previous prime is 40454017. The next prime is 40454053. The reversal of 40454025 is 52045404.

It is not a de Polignac number, because 40454025 - 2³ = 40454017 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40453986 and 40454004.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 378022 + ... + 378128.

It is an arithmetic number, because the mean of its divisors is an integer number (1902036).

Almost surely, 2^40454025 is an apocalyptic number.

It is an amenable number.

40454025 is a deficient number, since it is larger than the sum of its proper divisors (28019271).

40454025 is a wasteful number, since it uses less digits than its factorization.

40454025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40454025 is about 6360.3478678450. The cubic root of 40454025 is about 343.2842772990.

Adding to 40454025 its reverse (52045404), we get a palindrome (92499429).

The spelling of 40454025 in words is "forty million, four hundred fifty-four thousand, twenty-five".