3998890430 has 16 divisors (see below), whose sum is σ = 7238218320. Its totient is φ = 1590619392.

The previous prime is 3998890429. The next prime is 3998890447. The reversal of 3998890430 is 340988993.

It is a super-2 number, since 2×3998890430² = 31982249342291169800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115219 + ... + 1118798.

It is an arithmetic number, because the mean of its divisors is an integer number (452388645).

Almost surely, 2^3998890430 is an apocalyptic number.

3998890430 is a deficient number, since it is larger than the sum of its proper divisors (3239327890).

3998890430 is a wasteful number, since it uses less digits than its factorization.

3998890430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234203.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 3998890430 is about 63236.7806739084. The cubic root of 3998890430 is about 1587.2542606790.

The spelling of 3998890430 in words is "three billion, nine hundred ninety-eight million, eight hundred ninety thousand, four hundred thirty".