155435808 has 192 divisors, whose sum is σ = 479969280. Its totient is φ = 43545600.

The previous prime is 155435773. The next prime is 155435837. The reversal of 155435808 is 808534551.

It is a super-2 number, since 2×155435808² = 48320580817225728, which contains 22 as substring.

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, 1223841 + ... + 1223967.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^155435808 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 155435808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239984640).

155435808 is an abundant number, since it is smaller than the sum of its proper divisors (324533472).

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

155435808 is a wasteful number, since it uses less digits than its factorization.

155435808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 155435808 is about 12467.3897829498. The cubic root of 155435808 is about 537.6715102933.

The spelling of 155435808 in words is "one hundred fifty-five million, four hundred thirty-five thousand, eight hundred eight".