49691680 has 48 divisors (see below), whose sum is σ = 124309080. Its totient is φ = 18706432.

The previous prime is 49691659. The next prime is 49691701. The reversal of 49691680 is 8619694.

It is an interprime number because it is at equal distance from previous prime (49691659) and next prime (49691701).

It can be written as a sum of positive squares in 4 ways, for example, as 47720464 + 1971216 = 6908^2 + 1404^2 .

It is a super-2 number, since 2×49691680² = 4938526122444800, which contains 22 as substring.

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, 6415 + ... + 11854.

Almost surely, 2^49691680 is an apocalyptic number.

49691680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49691680 is an abundant number, since it is smaller than the sum of its proper divisors (74617400).

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

49691680 is a wasteful number, since it uses less digits than its factorization.

49691680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18301 (or 18293 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 49691680 is about 7049.2325823454. The cubic root of 49691680 is about 367.6443476330.

The spelling of 49691680 in words is "forty-nine million, six hundred ninety-one thousand, six hundred eighty".