155414840 has 32 divisors (see below), whose sum is σ = 399638880. Its totient is φ = 53284992.

The previous prime is 155414797. The next prime is 155414891. The reversal of 155414840 is 48414551.

155414840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155414797 and 155414806.

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, 277247 + ... + 277806.

It is an arithmetic number, because the mean of its divisors is an integer number (12488715).

Almost surely, 2^155414840 is an apocalyptic number.

155414840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155414840 is an abundant number, since it is smaller than the sum of its proper divisors (244224040).

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

155414840 is a wasteful number, since it uses less digits than its factorization.

155414840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555071 (or 555067 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 155414840 is about 12466.5488407979. The cubic root of 155414840 is about 537.6473322454.

The spelling of 155414840 in words is "one hundred fifty-five million, four hundred fourteen thousand, eight hundred forty".