1636146942 has 16 divisors (see below), whose sum is σ = 3276803712. Its totient is φ = 544630680.

The previous prime is 1636146937. The next prime is 1636146971. The reversal of 1636146942 is 2496416361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1636146894 and 1636146903.

It is a congruent number.

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, 183184 + ... + 191907.

It is an arithmetic number, because the mean of its divisors is an integer number (204800232).

Almost surely, 2^1636146942 is an apocalyptic number.

1636146942 is an abundant number, since it is smaller than the sum of its proper divisors (1640656770).

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

1636146942 is a wasteful number, since it uses less digits than its factorization.

1636146942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375823.

The product of its digits is 186624, while the sum is 42.

The square root of 1636146942 is about 40449.3132450973. The cubic root of 1636146942 is about 1178.3494451700.

The spelling of 1636146942 in words is "one billion, six hundred thirty-six million, one hundred forty-six thousand, nine hundred forty-two".