49989340 has 24 divisors (see below), whose sum is σ = 105173712. Its totient is φ = 19958400.

The previous prime is 49989319. The next prime is 49989347. The reversal of 49989340 is 4398994.

It is a super-2 number, since 2×49989340² = 4997868227271200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49989347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10315 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (4382238).

Almost surely, 2^49989340 is an apocalyptic number.

It is an amenable number.

49989340 is an abundant number, since it is smaller than the sum of its proper divisors (55184372).

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

49989340 is a wasteful number, since it uses less digits than its factorization.

49989340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 49989340 is about 7070.3139958562. The cubic root of 49989340 is about 368.3769668194.

The spelling of 49989340 in words is "forty-nine million, nine hundred eighty-nine thousand, three hundred forty".