862992642 has 16 divisors (see below), whose sum is σ = 1726293600. Its totient is φ = 287612832.

The previous prime is 862992631. The next prime is 862992661. The reversal of 862992642 is 246299268.

It is a happy number.

It is a super-2 number, since 2×862992642² = 1489512600292280328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 862992591 and 862992600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40734 + ... + 58182.

It is an arithmetic number, because the mean of its divisors is an integer number (107893350).

Almost surely, 2^862992642 is an apocalyptic number.

862992642 is an abundant number, since it is smaller than the sum of its proper divisors (863300958).

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

862992642 is a wasteful number, since it uses less digits than its factorization.

862992642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25697.

The product of its digits is 746496, while the sum is 48.

The square root of 862992642 is about 29376.7364082534. The cubic root of 862992642 is about 952.0703295558.

The spelling of 862992642 in words is "eight hundred sixty-two million, nine hundred ninety-two thousand, six hundred forty-two".