1390737204 has 36 divisors (see below), whose sum is σ = 3610490884. Its totient is φ = 451049472.

The previous prime is 1390737193. The next prime is 1390737223. The reversal of 1390737204 is 4027370931.

It can be written as a sum of positive squares in 2 ways, for example, as 481714704 + 909022500 = 21948^2 + 30150^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520717 + ... + 523380.

Almost surely, 2^1390737204 is an apocalyptic number.

It is an amenable number.

1390737204 is an abundant number, since it is smaller than the sum of its proper divisors (2219753680).

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

1390737204 is a wasteful number, since it uses less digits than its factorization.

1390737204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044144 (or 1044139 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1390737204 is about 37292.5891297453. The cubic root of 1390737204 is about 1116.2162932990.

The spelling of 1390737204 in words is "one billion, three hundred ninety million, seven hundred thirty-seven thousand, two hundred four".