40225437 has 32 divisors (see below), whose sum is σ = 68418560. Its totient is φ = 22880880.

The previous prime is 40225429. The next prime is 40225487. The reversal of 40225437 is 73452204.

40225437 is a `hidden beast` number, since 4 + 0 + 225 + 437 = 666.

It is not a de Polignac number, because 40225437 - 2³ = 40225429 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40225437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40225487) 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, 62238 + ... + 62880.

It is an arithmetic number, because the mean of its divisors is an integer number (2138080).

Almost surely, 2^40225437 is an apocalyptic number.

It is an amenable number.

40225437 is a deficient number, since it is larger than the sum of its proper divisors (28193123).

40225437 is a wasteful number, since it uses less digits than its factorization.

40225437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 40225437 is about 6342.3526392026. The cubic root of 40225437 is about 342.6364725111.

The spelling of 40225437 in words is "forty million, two hundred twenty-five thousand, four hundred thirty-seven".