398057135 has 24 divisors (see below), whose sum is σ = 557955216. Its totient is φ = 271824000.

The previous prime is 398057131. The next prime is 398057141. The reversal of 398057135 is 531750893.

It is a happy number.

It is not a de Polignac number, because 398057135 - 2² = 398057131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398057092 and 398057101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398057131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58259 + ... + 64731.

It is an arithmetic number, because the mean of its divisors is an integer number (23248134).

Almost surely, 2^398057135 is an apocalyptic number.

398057135 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

398057135 is a deficient number, since it is larger than the sum of its proper divisors (159898081).

398057135 is a wasteful number, since it uses less digits than its factorization.

398057135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743 (or 6736 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 398057135 is about 19951.3692512569. The cubic root of 398057135 is about 735.6114337726.

The spelling of 398057135 in words is "three hundred ninety-eight million, fifty-seven thousand, one hundred thirty-five".