49408731 has 16 divisors (see below), whose sum is σ = 74985120. Its totient is φ = 32135040.

The previous prime is 49408693. The next prime is 49408753. The reversal of 49408731 is 13780494.

It is a happy number.

It is not a de Polignac number, because 49408731 - 2⁷ = 49408603 is a prime.

It is a super-2 number, since 2×49408731² = 4882445398060722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49408781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21210 + ... + 23423.

It is an arithmetic number, because the mean of its divisors is an integer number (4686570).

Almost surely, 2^49408731 is an apocalyptic number.

49408731 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

49408731 is a deficient number, since it is larger than the sum of its proper divisors (25576389).

49408731 is a wasteful number, since it uses less digits than its factorization.

49408731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44683 (or 44677 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 49408731 is about 7029.1344417361. The cubic root of 49408731 is about 366.9452187288.

The spelling of 49408731 in words is "forty-nine million, four hundred eight thousand, seven hundred thirty-one".