155398364 has 54 divisors (see below), whose sum is σ = 307989696. Its totient is φ = 68552000.

The previous prime is 155398363. The next prime is 155398387. The reversal of 155398364 is 463893551.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155398363) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 813509 + ... + 813699.

Almost surely, 2^155398364 is an apocalyptic number.

It is an amenable number.

155398364 is a deficient number, since it is larger than the sum of its proper divisors (152591332).

155398364 is a wasteful number, since it uses less digits than its factorization.

155398364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 245 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 155398364 is about 12465.8880148989. Note that the first 3 decimals coincide. The cubic root of 155398364 is about 537.6283323642.

The spelling of 155398364 in words is "one hundred fifty-five million, three hundred ninety-eight thousand, three hundred sixty-four".