1399749795 has 16 divisors (see below), whose sum is σ = 2488444320. Its totient is φ = 746533152.

The previous prime is 1399749787. The next prime is 1399749811. The reversal of 1399749795 is 5979479931.

1399749795 is a `hidden beast` number, since 1 + 399 + 74 + 97 + 95 = 666.

It is not a de Polignac number, because 1399749795 - 2³ = 1399749787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5184124 + ... + 5184393.

It is an arithmetic number, because the mean of its divisors is an integer number (155527770).

Almost surely, 2^1399749795 is an apocalyptic number.

1399749795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1399749795 is a deficient number, since it is larger than the sum of its proper divisors (1088694525).

1399749795 is a wasteful number, since it uses less digits than its factorization.

1399749795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10368531 (or 10368525 counting only the distinct ones).

The product of its digits is 19289340, while the sum is 63.

The square root of 1399749795 is about 37413.2302133884. The cubic root of 1399749795 is about 1118.6222948807.

It can be divided in two parts, 139974 and 9795, that added together give a square (149769 = 387²).

The spelling of 1399749795 in words is "one billion, three hundred ninety-nine million, seven hundred forty-nine thousand, seven hundred ninety-five".