1390825740 has 48 divisors (see below), whose sum is σ = 3896040960. Its totient is φ = 370722240.

The previous prime is 1390825727. The next prime is 1390825741. The reversal of 1390825740 is 475280931.

It is not an unprimeable number, because it can be changed into a prime (1390825741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196381 + ... + 203339.

It is an arithmetic number, because the mean of its divisors is an integer number (81167520).

Almost surely, 2^1390825740 is an apocalyptic number.

1390825740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390825740 is an abundant number, since it is smaller than the sum of its proper divisors (2505215220).

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

1390825740 is a wasteful number, since it uses less digits than its factorization.

1390825740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10302 (or 10300 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1390825740 is about 37293.7761563508. The cubic root of 1390825740 is about 1116.2399793528.

The spelling of 1390825740 in words is "one billion, three hundred ninety million, eight hundred twenty-five thousand, seven hundred forty".