82402542 has 32 divisors (see below), whose sum is σ = 183456000. Its totient is φ = 27416664.

The previous prime is 82402493. The next prime is 82402561. The reversal of 82402542 is 24520428.

It is a happy number.

82402542 is a `hidden beast` number, since 82 + 40 + 2 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 38209 + ... + 40307.

It is an arithmetic number, because the mean of its divisors is an integer number (5733000).

Almost surely, 2^82402542 is an apocalyptic number.

82402542 is an abundant number, since it is smaller than the sum of its proper divisors (101053458).

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

82402542 is a wasteful number, since it uses less digits than its factorization.

82402542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 82402542 is about 9077.5845906276. The cubic root of 82402542 is about 435.1578974947.

It can be divided in two parts, 82402 and 542, that added together give a square (82944 = 288²).

The spelling of 82402542 in words is "eighty-two million, four hundred two thousand, five hundred forty-two".