3402172800 has 576 divisors, whose sum is σ = 13540316400. Its totient is φ = 833863680.

The previous prime is 3402172769. The next prime is 3402172819. The reversal of 3402172800 is 82712043.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×3402172800² = 23149559522119680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14601484 + ... + 14601716.

Almost surely, 2^3402172800 is an apocalyptic number.

3402172800 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 3402172800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6770158200).

3402172800 is an abundant number, since it is smaller than the sum of its proper divisors (10138143600).

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

3402172800 is a wasteful number, since it uses less digits than its factorization.

3402172800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 3402172800 is about 58328.1475790205. The cubic root of 3402172800 is about 1504.0148444287.

Adding to 3402172800 its reverse (82712043), we get a palindrome (3484884843).

The spelling of 3402172800 in words is "three billion, four hundred two million, one hundred seventy-two thousand, eight hundred".