1397790700 has 36 divisors (see below), whose sum is σ = 3037230952. Its totient is φ = 558374400.

The previous prime is 1397790679. The next prime is 1397790731. The reversal of 1397790700 is 70977931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69820 + ... + 87580.

Almost surely, 2^1397790700 is an apocalyptic number.

1397790700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1397790700 is an abundant number, since it is smaller than the sum of its proper divisors (1639440252).

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

1397790700 is a wasteful number, since it uses less digits than its factorization.

1397790700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18562 (or 18555 counting only the distinct ones).

The product of its (nonzero) digits is 83349, while the sum is 43.

The square root of 1397790700 is about 37387.0391980964. The cubic root of 1397790700 is about 1118.1001752483.

The spelling of 1397790700 in words is "one billion, three hundred ninety-seven million, seven hundred ninety thousand, seven hundred".