340402542 has 32 divisors (see below), whose sum is σ = 691939584. Its totient is φ = 111619200.

The previous prime is 340402523. The next prime is 340402571. The reversal of 340402542 is 245204043.

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, 374853 + ... + 375759.

It is an arithmetic number, because the mean of its divisors is an integer number (21623112).

Almost surely, 2^340402542 is an apocalyptic number.

340402542 is an abundant number, since it is smaller than the sum of its proper divisors (351537042).

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

340402542 is a wasteful number, since it uses less digits than its factorization.

340402542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 340402542 is about 18450.0011382113. The cubic root of 340402542 is about 698.2285426056.

Adding to 340402542 its reverse (245204043), we get a palindrome (585606585).

The spelling of 340402542 in words is "three hundred forty million, four hundred two thousand, five hundred forty-two".