239255402940 has 96 divisors (see below), whose sum is σ = 744957864000. Its totient is φ = 63749350656.

The previous prime is 239255402933. The next prime is 239255402941. The reversal of 239255402940 is 49204552932.

239255402940 is a `hidden beast` number, since 2 + 3 + 9 + 2 + 554 + 0 + 2 + 94 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239255402941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483406 + ... + 843914.

It is an arithmetic number, because the mean of its divisors is an integer number (7759977750).

Almost surely, 2^239255402940 is an apocalyptic number.

239255402940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239255402940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372478932000).

239255402940 is an abundant number, since it is smaller than the sum of its proper divisors (505702461060).

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

239255402940 is a wasteful number, since it uses less digits than its factorization.

239255402940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361756 (or 361748 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

It can be divided in two parts, 23925 and 5402940, that added together give a triangular number (5426865 = T₃₂₉₄).

The spelling of 239255402940 in words is "two hundred thirty-nine billion, two hundred fifty-five million, four hundred two thousand, nine hundred forty".