42973360440 has 32 divisors (see below), whose sum is σ = 128920081680. Its totient is φ = 11459562752.

The previous prime is 42973360433. The next prime is 42973360453. The reversal of 42973360440 is 4406337924.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42973360392 and 42973360401.

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, 179055549 + ... + 179055788.

Almost surely, 2^42973360440 is an apocalyptic number.

42973360440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42973360440 is an abundant number, since it is smaller than the sum of its proper divisors (85946721240).

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

42973360440 is a wasteful number, since it uses less digits than its factorization.

42973360440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358111351 (or 358111347 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 42973360440 in words is "forty-two billion, nine hundred seventy-three million, three hundred sixty thousand, four hundred forty".