1540318402 has 16 divisors (see below), whose sum is σ = 2641946112. Its totient is φ = 659786400.

The previous prime is 1540318397. The next prime is 1540318457. The reversal of 1540318402 is 2048130451.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 883 + ... + 55510.

It is an arithmetic number, because the mean of its divisors is an integer number (165121632).

Almost surely, 2^1540318402 is an apocalyptic number.

1540318402 is a deficient number, since it is larger than the sum of its proper divisors (1101627710).

1540318402 is a wasteful number, since it uses less digits than its factorization.

1540318402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58353.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1540318402 is about 39246.8903481537. The cubic root of 1540318402 is about 1154.8799315477.

Adding to 1540318402 its reverse (2048130451), we get a palindrome (3588448853).

The spelling of 1540318402 in words is "one billion, five hundred forty million, three hundred eighteen thousand, four hundred two".