49321980 has 96 divisors (see below), whose sum is σ = 154728000. Its totient is φ = 13042944.

The previous prime is 49321969. The next prime is 49321997. The reversal of 49321980 is 8912394.

It is a super-2 number, since 2×49321980² = 4865315422240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80154 + ... + 80766.

It is an arithmetic number, because the mean of its divisors is an integer number (1611750).

Almost surely, 2^49321980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49321980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77364000).

49321980 is an abundant number, since it is smaller than the sum of its proper divisors (105406020).

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

49321980 is a wasteful number, since it uses less digits than its factorization.

49321980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 49321980 is about 7022.9609140305. The cubic root of 49321980 is about 366.7303342151.

The spelling of 49321980 in words is "forty-nine million, three hundred twenty-one thousand, nine hundred eighty".