52142970 has 32 divisors (see below), whose sum is σ = 136520640. Its totient is φ = 12640640.

The previous prime is 52142947. The next prime is 52142971. The reversal of 52142970 is 7924125.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52142971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78675 + ... + 79334.

It is an arithmetic number, because the mean of its divisors is an integer number (4266270).

Almost surely, 2^52142970 is an apocalyptic number.

52142970 is an abundant number, since it is smaller than the sum of its proper divisors (84377670).

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

52142970 is a wasteful number, since it uses less digits than its factorization.

52142970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158030.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 52142970 is about 7221.0089322753. The cubic root of 52142970 is about 373.5928777337.

The spelling of 52142970 in words is "fifty-two million, one hundred forty-two thousand, nine hundred seventy".