48121900 has 36 divisors (see below), whose sum is σ = 110571048. Its totient is φ = 18115840.

The previous prime is 48121897. The next prime is 48121901. The reversal of 48121900 is 912184.

It is a happy number.

It is a super-2 number, since 2×48121900² = 4631434519220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48121901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12454 + ... + 15853.

It is an arithmetic number, because the mean of its divisors is an integer number (3071418).

Almost surely, 2^48121900 is an apocalyptic number.

It is an amenable number.

48121900 is an abundant number, since it is smaller than the sum of its proper divisors (62449148).

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

48121900 is a wasteful number, since it uses less digits than its factorization.

48121900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28338 (or 28331 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 48121900 is about 6936.9950266668. The cubic root of 48121900 is about 363.7315071116.

The spelling of 48121900 in words is "forty-eight million, one hundred twenty-one thousand, nine hundred".