155340456 has 64 divisors (see below), whose sum is σ = 400075200. Its totient is φ = 50239488.

The previous prime is 155340391. The next prime is 155340463. The reversal of 155340456 is 654043551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122755 + ... + 124013.

It is an arithmetic number, because the mean of its divisors is an integer number (6251175).

Almost surely, 2^155340456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155340456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200037600).

155340456 is an abundant number, since it is smaller than the sum of its proper divisors (244734744).

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

155340456 is a wasteful number, since it uses less digits than its factorization.

155340456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 155340456 is about 12463.5651400392. The cubic root of 155340456 is about 537.5615430523.

The spelling of 155340456 in words is "one hundred fifty-five million, three hundred forty thousand, four hundred fifty-six".