3694694400 has 468 divisors, whose sum is σ = 13996125520. Its totient is φ = 928972800.

The previous prime is 3694694389. The next prime is 3694694467. The reversal of 3694694400 is 44964963.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 17510295 + ... + 17510505.

Almost surely, 2^3694694400 is an apocalyptic number.

3694694400 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 3694694400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6998062760).

3694694400 is an abundant number, since it is smaller than the sum of its proper divisors (10301431120).

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

3694694400 is a wasteful number, since it uses less digits than its factorization.

3694694400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 3694694400 is about 60783.9978941826. The cubic root of 3694694400 is about 1545.9407347746.

The spelling of 3694694400 in words is "three billion, six hundred ninety-four million, six hundred ninety-four thousand, four hundred".