40627920 has 40 divisors (see below), whose sum is σ = 125947296. Its totient is φ = 10834048.

The previous prime is 40627889. The next prime is 40627921. The reversal of 40627920 is 2972604.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40627921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84402 + ... + 84881.

Almost surely, 2^40627920 is an apocalyptic number.

40627920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40627920 is an abundant number, since it is smaller than the sum of its proper divisors (85319376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40627920 is a wasteful number, since it uses less digits than its factorization.

40627920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169299 (or 169293 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40627920 is about 6374.0034515209. The cubic root of 40627920 is about 343.7754528811.

The spelling of 40627920 in words is "forty million, six hundred twenty-seven thousand, nine hundred twenty".