940642534 has 16 divisors (see below), whose sum is σ = 1520532720. Its totient is φ = 433847520.

The previous prime is 940642531. The next prime is 940642561. The reversal of 940642534 is 435246049.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 940642493 and 940642502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940642531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29332 + ... + 52360.

It is an arithmetic number, because the mean of its divisors is an integer number (95033295).

Almost surely, 2^940642534 is an apocalyptic number.

940642534 is a deficient number, since it is larger than the sum of its proper divisors (579890186).

940642534 is a wasteful number, since it uses less digits than its factorization.

940642534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24615.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 940642534 is about 30669.8962176268. The cubic root of 940642534 is about 979.8092555323.

The spelling of 940642534 in words is "nine hundred forty million, six hundred forty-two thousand, five hundred thirty-four".