49491408 has 40 divisors (see below), whose sum is σ = 128125728. Its totient is φ = 16461952.

The previous prime is 49491391. The next prime is 49491413. The reversal of 49491408 is 80419494.

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, 31735 + ... + 33257.

Almost surely, 2^49491408 is an apocalyptic number.

49491408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

49491408 is the 4062-nd octagonal number.

It is an amenable number.

49491408 is an abundant number, since it is smaller than the sum of its proper divisors (78634320).

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

49491408 is a wasteful number, since it uses less digits than its factorization.

49491408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 49491408 is about 7035.0130063846. The cubic root of 49491408 is about 367.1497778771.

The spelling of 49491408 in words is "forty-nine million, four hundred ninety-one thousand, four hundred eight".