154400256 has 240 divisors, whose sum is σ = 495999504. Its totient is φ = 47775744.

The previous prime is 154400249. The next prime is 154400261. The reversal of 154400256 is 652004451.

154400256 is a `hidden beast` number, since 1 + 5 + 4 + 400 + 256 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2115036 + ... + 2115108.

Almost surely, 2^154400256 is an apocalyptic number.

154400256 is a gapful number since it is divisible by the number (16) 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 154400256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247999752).

154400256 is an abundant number, since it is smaller than the sum of its proper divisors (341599248).

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

154400256 is an frugal number, since it uses more digits than its factorization.

154400256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 154400256 is about 12425.7899547675. The cubic root of 154400256 is about 536.4748150229.

The spelling of 154400256 in words is "one hundred fifty-four million, four hundred thousand, two hundred fifty-six".