40780037400 has 48 divisors (see below), whose sum is σ = 126418117800. Its totient is φ = 10874676480.

The previous prime is 40780037339. The next prime is 40780037479. The reversal of 40780037400 is 473008704.

It is a happy number.

It is a super-2 number, since 2×40780037400² (a number of 22 digits) 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 11 ways as a sum of consecutive naturals, for example, 33982765 + ... + 33983964.

Almost surely, 2^40780037400 is an apocalyptic number.

40780037400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40780037400 is an abundant number, since it is smaller than the sum of its proper divisors (85638080400).

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

40780037400 is a wasteful number, since it uses less digits than its factorization.

40780037400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67966748 (or 67966739 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 40780037400 in words is "forty billion, seven hundred eighty million, thirty-seven thousand, four hundred".