1390952907 has 24 divisors (see below), whose sum is σ = 2049980400. Its totient is φ = 908563968.

The previous prime is 1390952881. The next prime is 1390952923. The reversal of 1390952907 is 7092590931.

It is a happy number.

It is not a de Polignac number, because 1390952907 - 2¹¹ = 1390950859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1390952947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162019 + ... + 170387.

It is an arithmetic number, because the mean of its divisors is an integer number (85415850).

Almost surely, 2^1390952907 is an apocalyptic number.

1390952907 is a deficient number, since it is larger than the sum of its proper divisors (659027493).

1390952907 is a wasteful number, since it uses less digits than its factorization.

1390952907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8747 (or 8744 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 1390952907 is about 37295.4810533394. The cubic root of 1390952907 is about 1116.2739986071.

The spelling of 1390952907 in words is "one billion, three hundred ninety million, nine hundred fifty-two thousand, nine hundred seven".