72400701234 has 32 divisors (see below), whose sum is σ = 148593614400. Its totient is φ = 23504749632.

The previous prime is 72400701229. The next prime is 72400701239. The reversal of 72400701234 is 43210700427.

It is an interprime number because it is at equal distance from previous prime (72400701229) and next prime (72400701239).

It is not an unprimeable number, because it can be changed into a prime (72400701239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311997 + ... + 492080.

It is an arithmetic number, because the mean of its divisors is an integer number (4643550450).

Almost surely, 2^72400701234 is an apocalyptic number.

72400701234 is an abundant number, since it is smaller than the sum of its proper divisors (76192913166).

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

72400701234 is a wasteful number, since it uses less digits than its factorization.

72400701234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804474.

The product of its (nonzero) digits is 9408, while the sum is 30.

The spelling of 72400701234 in words is "seventy-two billion, four hundred million, seven hundred one thousand, two hundred thirty-four".