1373700400 has 30 divisors (see below), whose sum is σ = 3300316172. Its totient is φ = 549480000.

The previous prime is 1373700379. The next prime is 1373700407. The reversal of 1373700400 is 40073731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1373700407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1716726 + ... + 1717525.

Almost surely, 2^1373700400 is an apocalyptic number.

1373700400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373700400 is an abundant number, since it is smaller than the sum of its proper divisors (1926615772).

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

1373700400 is a wasteful number, since it uses less digits than its factorization.

1373700400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434269 (or 3434258 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 1373700400 is about 37063.4644899799. The cubic root of 1373700400 is about 1111.6395973330.

The spelling of 1373700400 in words is "one billion, three hundred seventy-three million, seven hundred thousand, four hundred".