155834490 has 32 divisors (see below), whose sum is σ = 427432320. Its totient is φ = 35619264.

The previous prime is 155834473. The next prime is 155834513. The reversal of 155834490 is 94438551.

155834490 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370825 + ... + 371244.

It is an arithmetic number, because the mean of its divisors is an integer number (13357260).

Almost surely, 2^155834490 is an apocalyptic number.

155834490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155834490 is an abundant number, since it is smaller than the sum of its proper divisors (271597830).

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

155834490 is a wasteful number, since it uses less digits than its factorization.

155834490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742086.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 155834490 is about 12483.3685357759. The cubic root of 155834490 is about 538.1308144561.

The spelling of 155834490 in words is "one hundred fifty-five million, eight hundred thirty-four thousand, four hundred ninety".