3971174400 has 468 divisors, whose sum is σ = 14788359040. Its totient is φ = 1017446400.

The previous prime is 3971174387. The next prime is 3971174447. The reversal of 3971174400 is 44711793.

It is a super-2 number, since 2×3971174400² = 31540452230430720000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28569531 + ... + 28569669.

Almost surely, 2^3971174400 is an apocalyptic number.

3971174400 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 3971174400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7394179520).

3971174400 is an abundant number, since it is smaller than the sum of its proper divisors (10817184640).

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

3971174400 is a wasteful number, since it uses less digits than its factorization.

3971174400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 3971174400 is about 63017.2547799410. The cubic root of 3971174400 is about 1583.5787064472.

The spelling of 3971174400 in words is "three billion, nine hundred seventy-one million, one hundred seventy-four thousand, four hundred".