42299955 has 16 divisors (see below), whose sum is σ = 75200160. Its totient is φ = 22559904.

The previous prime is 42299941. The next prime is 42299963. The reversal of 42299955 is 55999224.

It is not a de Polignac number, because 42299955 - 2⁶ = 42299891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42299955.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156532 + ... + 156801.

It is an arithmetic number, because the mean of its divisors is an integer number (4700010).

Almost surely, 2^42299955 is an apocalyptic number.

42299955 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42299955 is a deficient number, since it is larger than the sum of its proper divisors (32900205).

42299955 is a wasteful number, since it uses less digits than its factorization.

42299955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313347 (or 313341 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 42299955 is about 6503.8415571107. The cubic root of 42299955 is about 348.4282035700.

The spelling of 42299955 in words is "forty-two million, two hundred ninety-nine thousand, nine hundred fifty-five".