40930040 has 32 divisors (see below), whose sum is σ = 92292480. Its totient is φ = 16336512.

The previous prime is 40929989. The next prime is 40930051. The reversal of 40930040 is 4003904.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40929994 and 40930021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25337 + ... + 26903.

It is an arithmetic number, because the mean of its divisors is an integer number (2884140).

Almost surely, 2^40930040 is an apocalyptic number.

40930040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40930040 is an abundant number, since it is smaller than the sum of its proper divisors (51362440).

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

40930040 is a wasteful number, since it uses less digits than its factorization.

40930040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 40930040 is about 6397.6589468336. The cubic root of 40930040 is about 344.6254845103.

Adding to 40930040 its reverse (4003904), we get a palindrome (44933944).

The spelling of 40930040 in words is "forty million, nine hundred thirty thousand, forty".