1390774080 has 224 divisors, whose sum is σ = 4828032000. Its totient is φ = 337674240.

The previous prime is 1390774043. The next prime is 1390774081. The reversal of 1390774080 is 804770931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390774081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504546 + ... + 507294.

Almost surely, 2^1390774080 is an apocalyptic number.

1390774080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390774080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2414016000).

1390774080 is an abundant number, since it is smaller than the sum of its proper divisors (3437257920).

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

1390774080 is a wasteful number, since it uses less digits than its factorization.

1390774080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2807 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 1390774080 is about 37293.0835410536. The cubic root of 1390774080 is about 1116.2261588648.

The spelling of 1390774080 in words is "one billion, three hundred ninety million, seven hundred seventy-four thousand, eighty".