1390570752 has 144 divisors (see below), whose sum is σ = 3814594560. Its totient is φ = 449519616.

The previous prime is 1390570733. The next prime is 1390570759. The reversal of 1390570752 is 2570750931.

It is a self number, because there is not a number n which added to its sum of digits gives 1390570752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390570759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5169274 + ... + 5169542.

It is an arithmetic number, because the mean of its divisors is an integer number (26490240).

Almost surely, 2^1390570752 is an apocalyptic number.

1390570752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390570752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1907297280).

1390570752 is an abundant number, since it is smaller than the sum of its proper divisors (2424023808).

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

1390570752 is a wasteful number, since it uses less digits than its factorization.

1390570752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 1390570752 is about 37290.3573595105. The cubic root of 1390570752 is about 1116.1717596405.

The spelling of 1390570752 in words is "one billion, three hundred ninety million, five hundred seventy thousand, seven hundred fifty-two".