39813898 has 16 divisors (see below), whose sum is σ = 63383040. Its totient is φ = 18691776.

The previous prime is 39813877. The next prime is 39813899. The reversal of 39813898 is 89831893.

It is not an unprimeable number, because it can be changed into a prime (39813899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16663 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (3961440).

Almost surely, 2^39813898 is an apocalyptic number.

39813898 is a deficient number, since it is larger than the sum of its proper divisors (23569142).

39813898 is a wasteful number, since it uses less digits than its factorization.

39813898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781.

The product of its digits is 373248, while the sum is 49.

The square root of 39813898 is about 6309.8255126430. The cubic root of 39813898 is about 341.4639814184.

The spelling of 39813898 in words is "thirty-nine million, eight hundred thirteen thousand, eight hundred ninety-eight".