155478204 has 96 divisors (see below), whose sum is σ = 466547200. Its totient is φ = 44404848.

The previous prime is 155478179. The next prime is 155478221. The reversal of 155478204 is 402874551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59967 + ... + 62505.

Almost surely, 2^155478204 is an apocalyptic number.

155478204 is a gapful number since it is divisible by the number (14) 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 155478204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233273600).

155478204 is an abundant number, since it is smaller than the sum of its proper divisors (311068996).

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

155478204 is an equidigital number, since it uses as much as digits as its factorization.

155478204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 155478204 is about 12469.0899427344. The cubic root of 155478204 is about 537.7203901695.

The spelling of 155478204 in words is "one hundred fifty-five million, four hundred seventy-eight thousand, two hundred four".