1390041500 has 24 divisors (see below), whose sum is σ = 3035851728. Its totient is φ = 556016400.

The previous prime is 1390041473. The next prime is 1390041509. The reversal of 1390041500 is 51400931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390041509) 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, 1389542 + ... + 1390541.

It is an arithmetic number, because the mean of its divisors is an integer number (126493822).

Almost surely, 2^1390041500 is an apocalyptic number.

1390041500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390041500 is an abundant number, since it is smaller than the sum of its proper divisors (1645810228).

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

1390041500 is a wasteful number, since it uses less digits than its factorization.

1390041500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780102 (or 2780090 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1390041500 is about 37283.2603188080. The cubic root of 1390041500 is about 1116.0301364746.

The spelling of 1390041500 in words is "one billion, three hundred ninety million, forty-one thousand, five hundred".