40214920 has 16 divisors (see below), whose sum is σ = 90483660. Its totient is φ = 16085952.

The previous prime is 40214903. The next prime is 40214929. The reversal of 40214920 is 2941204.

It can be written as a sum of positive squares in 2 ways, for example, as 37039396 + 3175524 = 6086^2 + 1782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40214891 and 40214900.

It is not an unprimeable number, because it can be changed into a prime (40214929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502647 + ... + 502726.

Almost surely, 2^40214920 is an apocalyptic number.

40214920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40214920 is an abundant number, since it is smaller than the sum of its proper divisors (50268740).

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

40214920 is a wasteful number, since it uses less digits than its factorization.

40214920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005384 (or 1005380 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40214920 is about 6341.5234762634. The cubic root of 40214920 is about 342.6066089709.

The spelling of 40214920 in words is "forty million, two hundred fourteen thousand, nine hundred twenty".