857429034 has 64 divisors (see below), whose sum is σ = 2263790592. Its totient is φ = 209606400.

The previous prime is 857429021. The next prime is 857429057. The reversal of 857429034 is 430924758.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46732 + ... + 62439.

It is an arithmetic number, because the mean of its divisors is an integer number (35371728).

Almost surely, 2^857429034 is an apocalyptic number.

857429034 is an abundant number, since it is smaller than the sum of its proper divisors (1406361558).

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

857429034 is a wasteful number, since it uses less digits than its factorization.

857429034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109211.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 857429034 is about 29281.8891808572. The cubic root of 857429034 is about 950.0199567368.

The spelling of 857429034 in words is "eight hundred fifty-seven million, four hundred twenty-nine thousand, thirty-four".