1397150370 has 448 divisors, whose sum is σ = 4986178560. Its totient is φ = 272937600.

The previous prime is 1397150327. The next prime is 1397150411. The reversal of 1397150370 is 730517931.

1397150370 is a `hidden beast` number, since 13 + 9 + 71 + 503 + 70 = 666.

It is a super-2 number, since 2×1397150370² = 3904058312782273800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 10665205 + ... + 10665335.

Almost surely, 2^1397150370 is an apocalyptic number.

1397150370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397150370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2493089280).

1397150370 is an abundant number, since it is smaller than the sum of its proper divisors (3589028190).

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

1397150370 is a wasteful number, since it uses less digits than its factorization.

1397150370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 36.

The square root of 1397150370 is about 37378.4746879805. The cubic root of 1397150370 is about 1117.9294147190.

The spelling of 1397150370 in words is "one billion, three hundred ninety-seven million, one hundred fifty thousand, three hundred seventy".