1390719459 has 32 divisors (see below), whose sum is σ = 2114830080. Its totient is φ = 807432192.

The previous prime is 1390719431. The next prime is 1390719479. The reversal of 1390719459 is 9549170931.

1390719459 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1390719459 - 2⁹ = 1390718947 is a prime.

It is a super-2 number, since 2×1390719459² = 3868201227282505362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1390719479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24979 + ... + 58355.

It is an arithmetic number, because the mean of its divisors is an integer number (66088440).

Almost surely, 2^1390719459 is an apocalyptic number.

1390719459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1390719459 is a deficient number, since it is larger than the sum of its proper divisors (724110621).

1390719459 is a wasteful number, since it uses less digits than its factorization.

1390719459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33459.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 1390719459 is about 37292.3512130839. The cubic root of 1390719459 is about 1116.2115458547.

The spelling of 1390719459 in words is "one billion, three hundred ninety million, seven hundred nineteen thousand, four hundred fifty-nine".