49181994 has 24 divisors (see below), whose sum is σ = 112170240. Its totient is φ = 15531048.

The previous prime is 49181971. The next prime is 49182011. The reversal of 49181994 is 49918194.

It is a super-3 number, since 3×49181994³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71562 + ... + 72245.

It is an arithmetic number, because the mean of its divisors is an integer number (4673760).

Almost surely, 2^49181994 is an apocalyptic number.

49181994 is an abundant number, since it is smaller than the sum of its proper divisors (62988246).

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

49181994 is a wasteful number, since it uses less digits than its factorization.

49181994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143834 (or 143831 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 49181994 is about 7012.9875231602. The cubic root of 49181994 is about 366.3830532277.

The spelling of 49181994 in words is "forty-nine million, one hundred eighty-one thousand, nine hundred ninety-four".