49661970 has 32 divisors (see below), whose sum is σ = 119387520. Its totient is φ = 13221120.

The previous prime is 49661957. The next prime is 49661993. The reversal of 49661970 is 7916694.

It is a super-2 number, since 2×49661970² = 4932622528561800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25491 + ... + 27369.

It is an arithmetic number, because the mean of its divisors is an integer number (3730860).

Almost surely, 2^49661970 is an apocalyptic number.

49661970 is an abundant number, since it is smaller than the sum of its proper divisors (69725550).

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

49661970 is a wasteful number, since it uses less digits than its factorization.

49661970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 49661970 is about 7047.1249456782. The cubic root of 49661970 is about 367.5710631238.

The spelling of 49661970 in words is "forty-nine million, six hundred sixty-one thousand, nine hundred seventy".