1390516340 has 48 divisors (see below), whose sum is σ = 2963520000. Its totient is φ = 547986432.

The previous prime is 1390516333. The next prime is 1390516363. The reversal of 1390516340 is 436150931.

It is a junction number, because it is equal to n+sod(n) for n = 1390516297 and 1390516306.

It is a congruent number.

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, 462161 + ... + 465159.

It is an arithmetic number, because the mean of its divisors is an integer number (61740000).

Almost surely, 2^1390516340 is an apocalyptic number.

1390516340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390516340 is an abundant number, since it is smaller than the sum of its proper divisors (1573003660).

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

1390516340 is a wasteful number, since it uses less digits than its factorization.

1390516340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1390516340 is about 37289.6277803895. The cubic root of 1390516340 is about 1116.1572011268.

The spelling of 1390516340 in words is "one billion, three hundred ninety million, five hundred sixteen thousand, three hundred forty".