1399833970 has 16 divisors (see below), whose sum is σ = 2527184088. Its totient is φ = 558270720.

The previous prime is 1399833959. The next prime is 1399833971. The reversal of 1399833970 is 793389931.

It can be written as a sum of positive squares in 4 ways, for example, as 481319721 + 918514249 = 21939^2 + 30307^2 .

It is not an unprimeable number, because it can be changed into a prime (1399833971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204321 + ... + 211060.

Almost surely, 2^1399833970 is an apocalyptic number.

1399833970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399833970 is a deficient number, since it is larger than the sum of its proper divisors (1127350118).

1399833970 is a wasteful number, since it uses less digits than its factorization.

1399833970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415725.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 1399833970 is about 37414.3551327562. The cubic root of 1399833970 is about 1118.6447174938.

The spelling of 1399833970 in words is "one billion, three hundred ninety-nine million, eight hundred thirty-three thousand, nine hundred seventy".