155426240 has 56 divisors (see below), whose sum is σ = 391893552. Its totient is φ = 58511360.

The previous prime is 155426207. The next prime is 155426267. The reversal of 155426240 is 42624551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8846 + ... + 19725.

Almost surely, 2^155426240 is an apocalyptic number.

155426240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155426240 is an abundant number, since it is smaller than the sum of its proper divisors (236467312).

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

155426240 is a wasteful number, since it uses less digits than its factorization.

155426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28605 (or 28595 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 155426240 is about 12467.0060559863. The cubic root of 155426240 is about 537.6604777720.

The spelling of 155426240 in words is "one hundred fifty-five million, four hundred twenty-six thousand, two hundred forty".