155460400 has 30 divisors (see below), whose sum is σ = 373494572. Its totient is φ = 62184000.

The previous prime is 155460377. The next prime is 155460401. The reversal of 155460400 is 4064551.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (155460401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193926 + ... + 194725.

Almost surely, 2^155460400 is an apocalyptic number.

155460400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155460400 is an abundant number, since it is smaller than the sum of its proper divisors (218034172).

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

155460400 is a wasteful number, since it uses less digits than its factorization.

155460400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388669 (or 388658 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 155460400 is about 12468.3759968971. The cubic root of 155460400 is about 537.6998643787.

The spelling of 155460400 in words is "one hundred fifty-five million, four hundred sixty thousand, four hundred".