238402375440 has 40 divisors (see below), whose sum is σ = 739047364608. Its totient is φ = 63573966720.

The previous prime is 238402375399. The next prime is 238402375447. The reversal of 238402375440 is 44573204832.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 238402375392 and 238402375401.

It is not an unprimeable number, because it can be changed into a prime (238402375447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496671376 + ... + 496671855.

Almost surely, 2^238402375440 is an apocalyptic number.

238402375440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238402375440 is an abundant number, since it is smaller than the sum of its proper divisors (500644989168).

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

238402375440 is a wasteful number, since it uses less digits than its factorization.

238402375440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993343247 (or 993343241 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 238402375440 in words is "two hundred thirty-eight billion, four hundred two million, three hundred seventy-five thousand, four hundred forty".