1390316553940 has 24 divisors (see below), whose sum is σ = 2919754526472. Its totient is φ = 556109523840.

The previous prime is 1390316553937. The next prime is 1390316553943. The reversal of 1390316553940 is 493556130931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1390316553937) and next prime (1390316553943).

It can be written as a sum of positive squares in 4 ways, for example, as 131764644036 + 1258551909904 = 362994^2 + 1121852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390316553943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391351 + ... + 1712830.

It is an arithmetic number, because the mean of its divisors is an integer number (121656438603).

Almost surely, 2^{1390316553940} is an apocalyptic number.

1390316553940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390316553940 is an abundant number, since it is smaller than the sum of its proper divisors (1529437972532).

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

1390316553940 is a wasteful number, since it uses less digits than its factorization.

1390316553940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137227 (or 2137225 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 49.

The spelling of 1390316553940 in words is "one trillion, three hundred ninety billion, three hundred sixteen million, five hundred fifty-three thousand, nine hundred forty".