40620988 has 12 divisors (see below), whose sum is σ = 71791272. Its totient is φ = 20109200.

The previous prime is 40620941. The next prime is 40620991. The reversal of 40620988 is 88902604.

It is a super-2 number, since 2×40620988² = 3300129332192288, which contains 22 as substring.

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, 49870 + ... + 50677.

It is an arithmetic number, because the mean of its divisors is an integer number (5982606).

Almost surely, 2^40620988 is an apocalyptic number.

It is an amenable number.

40620988 is a deficient number, since it is larger than the sum of its proper divisors (31170284).

40620988 is a wasteful number, since it uses less digits than its factorization.

40620988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100652 (or 100650 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 40620988 is about 6373.4596570466. The cubic root of 40620988 is about 343.7558999318.

Adding to 40620988 its product of nonzero digits (27648), we get a triangular number (40648636 = T₉₀₁₆).

The spelling of 40620988 in words is "forty million, six hundred twenty thousand, nine hundred eighty-eight".