40655400 has 48 divisors (see below), whose sum is σ = 126033600. Its totient is φ = 10841280.

The previous prime is 40655387. The next prime is 40655413. The reversal of 40655400 is 455604.

It is an interprime number because it is at equal distance from previous prime (40655387) and next prime (40655413).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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, 33280 + ... + 34479.

It is an arithmetic number, because the mean of its divisors is an integer number (2625700).

Almost surely, 2^40655400 is an apocalyptic number.

40655400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40655400 is an abundant number, since it is smaller than the sum of its proper divisors (85378200).

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

40655400 is a wasteful number, since it uses less digits than its factorization.

40655400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67778 (or 67769 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40655400 is about 6376.1587182253. The cubic root of 40655400 is about 343.8529432730.

The spelling of 40655400 in words is "forty million, six hundred fifty-five thousand, four hundred".