2121374598 has 32 divisors (see below), whose sum is σ = 4915286016. Its totient is φ = 597803328.

The previous prime is 2121374579. The next prime is 2121374627. The reversal of 2121374598 is 8954731212.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342886 + ... + 349017.

It is an arithmetic number, because the mean of its divisors is an integer number (153602688).

Almost surely, 2^2121374598 is an apocalyptic number.

2121374598 is an abundant number, since it is smaller than the sum of its proper divisors (2793911418).

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

2121374598 is a wasteful number, since it uses less digits than its factorization.

2121374598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691988.

The product of its digits is 120960, while the sum is 42.

The square root of 2121374598 is about 46058.3824943951. The cubic root of 2121374598 is about 1284.9092474276.

The spelling of 2121374598 in words is "two billion, one hundred twenty-one million, three hundred seventy-four thousand, five hundred ninety-eight".