40972437 has 12 divisors (see below), whose sum is σ = 64562784. Its totient is φ = 24831720.

The previous prime is 40972429. The next prime is 40972441. The reversal of 40972437 is 73427904.

40972437 is a `hidden beast` number, since 409 + 7 + 243 + 7 = 666.

It is not a de Polignac number, because 40972437 - 2³ = 40972429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40972537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206833 + ... + 207030.

It is an arithmetic number, because the mean of its divisors is an integer number (5380232).

Almost surely, 2^40972437 is an apocalyptic number.

It is an amenable number.

40972437 is a deficient number, since it is larger than the sum of its proper divisors (23590347).

40972437 is a wasteful number, since it uses less digits than its factorization.

40972437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413880 (or 413877 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 40972437 is about 6400.9715668795. The cubic root of 40972437 is about 344.7444358123.

The spelling of 40972437 in words is "forty million, nine hundred seventy-two thousand, four hundred thirty-seven".