154949880 has 32 divisors (see below), whose sum is σ = 464850000. Its totient is φ = 41319936.

The previous prime is 154949843. The next prime is 154949881. The reversal of 154949880 is 88949451.

154949880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154949881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645505 + ... + 645744.

Almost surely, 2^154949880 is an apocalyptic number.

154949880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154949880 is an abundant number, since it is smaller than the sum of its proper divisors (309900120).

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

154949880 is a wasteful number, since it uses less digits than its factorization.

154949880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291263 (or 1291259 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 154949880 is about 12447.8865676066. The cubic root of 154949880 is about 537.1106305710.

The spelling of 154949880 in words is "one hundred fifty-four million, nine hundred forty-nine thousand, eight hundred eighty".