39400161600 has 168 divisors, whose sum is σ = 130197534880. Its totient is φ = 10430945280.

The previous prime is 39400161599. The next prime is 39400161613. The reversal of 39400161600 is 616100493.

It is a super-4 number, since 4×39400161600⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637674 + ... + 696726.

Almost surely, 2^39400161600 is an apocalyptic number.

39400161600 is a gapful number since it is divisible by the number (30) 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 39400161600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65098767440).

39400161600 is an abundant number, since it is smaller than the sum of its proper divisors (90797373280).

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

39400161600 is a wasteful number, since it uses less digits than its factorization.

39400161600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59217 (or 59202 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 39400161600 in words is "thirty-nine billion, four hundred million, one hundred sixty-one thousand, six hundred".