1540342056 has 32 divisors (see below), whose sum is σ = 4200933600. Its totient is φ = 466770240.

The previous prime is 1540342019. The next prime is 1540342057. The reversal of 1540342056 is 6502430451.

It is not an unprimeable number, because it can be changed into a prime (1540342057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917051 + ... + 2917578.

It is an arithmetic number, because the mean of its divisors is an integer number (131279175).

Almost surely, 2^1540342056 is an apocalyptic number.

It is an amenable number.

1540342056 is an abundant number, since it is smaller than the sum of its proper divisors (2660591544).

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

1540342056 is a wasteful number, since it uses less digits than its factorization.

1540342056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834649 (or 5834645 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1540342056 is about 39247.1916957124. The cubic root of 1540342056 is about 1154.8858431804.

The spelling of 1540342056 in words is "one billion, five hundred forty million, three hundred forty-two thousand, fifty-six".