1390151390 has 16 divisors (see below), whose sum is σ = 2503107360. Its totient is φ = 555875040.

The previous prime is 1390151341. The next prime is 1390151393. The reversal of 1390151390 is 931510931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390151393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10631 + ... + 53789.

It is an arithmetic number, because the mean of its divisors is an integer number (156444210).

Almost surely, 2^1390151390 is an apocalyptic number.

1390151390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390151390 is a deficient number, since it is larger than the sum of its proper divisors (1112955970).

1390151390 is a wasteful number, since it uses less digits than its factorization.

1390151390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46387.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 1390151390 is about 37284.7340073655. The cubic root of 1390151390 is about 1116.0595450258.

The spelling of 1390151390 in words is "one billion, three hundred ninety million, one hundred fifty-one thousand, three hundred ninety".