152798440 has 32 divisors (see below), whose sum is σ = 347143680. Its totient is φ = 60524352.

The previous prime is 152798413. The next prime is 152798441. The reversal of 152798440 is 44897251.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 152798393 and 152798402.

It is not an unprimeable number, because it can be changed into a prime (152798441) 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, 14424 + ... + 22663.

It is an arithmetic number, because the mean of its divisors is an integer number (10848240).

Almost surely, 2^152798440 is an apocalyptic number.

152798440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152798440 is an abundant number, since it is smaller than the sum of its proper divisors (194345240).

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

152798440 is a wasteful number, since it uses less digits than its factorization.

152798440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37201 (or 37197 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 152798440 is about 12361.1666116107. The cubic root of 152798440 is about 534.6131538355.

The spelling of 152798440 in words is "one hundred fifty-two million, seven hundred ninety-eight thousand, four hundred forty".