1542394956 has 48 divisors (see below), whose sum is σ = 3740083200. Its totient is φ = 494189760.

The previous prime is 1542394951. The next prime is 1542394961. The reversal of 1542394956 is 6594932451.

It is an interprime number because it is at equal distance from previous prime (1542394951) and next prime (1542394961).

It is not an unprimeable number, because it can be changed into a prime (1542394951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41515 + ... + 69341.

It is an arithmetic number, because the mean of its divisors is an integer number (77918400).

Almost surely, 2^1542394956 is an apocalyptic number.

It is an amenable number.

1542394956 is an abundant number, since it is smaller than the sum of its proper divisors (2197688244).

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

1542394956 is a wasteful number, since it uses less digits than its factorization.

1542394956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28014 (or 28012 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The square root of 1542394956 is about 39273.3364510835. The cubic root of 1542394956 is about 1155.3986757373.

The spelling of 1542394956 in words is "one billion, five hundred forty-two million, three hundred ninety-four thousand, nine hundred fifty-six".