48978972 has 192 divisors, whose sum is σ = 159344640. Its totient is φ = 12690432.

The previous prime is 48978959. The next prime is 48978997. The reversal of 48978972 is 27987984.

48978972 is a `hidden beast` number, since 489 + 78 + 97 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 475473 + ... + 475575.

It is an arithmetic number, because the mean of its divisors is an integer number (829920).

Almost surely, 2^48978972 is an apocalyptic number.

48978972 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48978972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79672320).

48978972 is an abundant number, since it is smaller than the sum of its proper divisors (110365668).

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

48978972 is a wasteful number, since it uses less digits than its factorization.

48978972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 169 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 48978972 is about 6998.4978388223. The cubic root of 48978972 is about 365.8782180157.

The spelling of 48978972 in words is "forty-eight million, nine hundred seventy-eight thousand, nine hundred seventy-two".