42964155 has 32 divisors (see below), whose sum is σ = 82259520. Its totient is φ = 21150720.

The previous prime is 42964153. The next prime is 42964177. The reversal of 42964155 is 55146924.

42964155 is a `hidden beast` number, since 4 + 2 + 9 + 641 + 5 + 5 = 666.

It is not a de Polignac number, because 42964155 - 2¹ = 42964153 is a prime.

It is a super-2 number, since 2×42964155² = 3691837229728050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42964153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10486 + ... + 13995.

It is an arithmetic number, because the mean of its divisors is an integer number (2570610).

Almost surely, 2^42964155 is an apocalyptic number.

42964155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42964155 is a deficient number, since it is larger than the sum of its proper divisors (39295365).

42964155 is a wasteful number, since it uses less digits than its factorization.

42964155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24508 (or 24502 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 42964155 is about 6554.7047988449. The cubic root of 42964155 is about 350.2424306789.

The spelling of 42964155 in words is "forty-two million, nine hundred sixty-four thousand, one hundred fifty-five".