40004077437 has 12 divisors (see below), whose sum is σ = 58151718300. Its totient is φ = 26499515328.

The previous prime is 40004077381. The next prime is 40004077439. The reversal of 40004077437 is 73477040004.

It can be written as a sum of positive squares in 2 ways, for example, as 20755012356 + 19249065081 = 144066^2 + 138741^2 .

It is not a de Polignac number, because 40004077437 - 2¹⁵ = 40004044669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004077439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14154312 + ... + 14157137.

It is an arithmetic number, because the mean of its divisors is an integer number (4845976525).

Almost surely, 2^40004077437 is an apocalyptic number.

It is an amenable number.

40004077437 is a deficient number, since it is larger than the sum of its proper divisors (18147640863).

40004077437 is a wasteful number, since it uses less digits than its factorization.

40004077437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28311612 (or 28311609 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The spelling of 40004077437 in words is "forty billion, four million, seventy-seven thousand, four hundred thirty-seven".