48921540 has 48 divisors (see below), whose sum is σ = 138727680. Its totient is φ = 12879360.

The previous prime is 48921539. The next prime is 48921547. The reversal of 48921540 is 4512984.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (48921547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421 + ... + 9900.

It is an arithmetic number, because the mean of its divisors is an integer number (2890160).

Almost surely, 2^48921540 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 48921540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69363840).

48921540 is an abundant number, since it is smaller than the sum of its proper divisors (89806140).

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

48921540 is a wasteful number, since it uses less digits than its factorization.

48921540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10412 (or 10410 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 48921540 is about 6994.3934690579. The cubic root of 48921540 is about 365.7351543326.

The spelling of 48921540 in words is "forty-eight million, nine hundred twenty-one thousand, five hundred forty".