40021496 has 16 divisors (see below), whose sum is σ = 77461440. Its totient is φ = 19365120.

The previous prime is 40021489. The next prime is 40021507. The reversal of 40021496 is 69412004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80441 + ... + 80936.

It is an arithmetic number, because the mean of its divisors is an integer number (4841340).

Almost surely, 2^40021496 is an apocalyptic number.

It is an amenable number.

40021496 is a deficient number, since it is larger than the sum of its proper divisors (37439944).

40021496 is a wasteful number, since it uses less digits than its factorization.

40021496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161414 (or 161410 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40021496 is about 6326.2545000972. The cubic root of 40021496 is about 342.0564411027.

The spelling of 40021496 in words is "forty million, twenty-one thousand, four hundred ninety-six".