1542660402 has 16 divisors (see below), whose sum is σ = 3087858240. Its totient is φ = 513797232.

The previous prime is 1542660397. The next prime is 1542660419. The reversal of 1542660402 is 2040662451.

It is a super-2 number, since 2×1542660402² = 4759602231797603208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1542660402.

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, 97777 + ... + 112452.

It is an arithmetic number, because the mean of its divisors is an integer number (192991140).

Almost surely, 2^1542660402 is an apocalyptic number.

1542660402 is an abundant number, since it is smaller than the sum of its proper divisors (1545197838).

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

1542660402 is a wasteful number, since it uses less digits than its factorization.

1542660402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211457.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1542660402 is about 39276.7157741072. The cubic root of 1542660402 is about 1155.4649532631.

The spelling of 1542660402 in words is "one billion, five hundred forty-two million, six hundred sixty thousand, four hundred two".