1390970090448 has 120 divisors (see below), whose sum is σ = 3957375028256. Its totient is φ = 455966496000.

The previous prime is 1390970090443. The next prime is 1390970090449. The reversal of 1390970090448 is 8440900790931.

It is a junction number, because it is equal to n+sod(n) for n = 1390970090394 and 1390970090403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390970090443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56653311 + ... + 56677857.

Almost surely, 2^{1390970090448} is an apocalyptic number.

1390970090448 is a gapful number since it is divisible by the number (18) 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 1390970090448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1978687514128).

1390970090448 is an abundant number, since it is smaller than the sum of its proper divisors (2566404937808).

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

1390970090448 is a wasteful number, since it uses less digits than its factorization.

1390970090448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31073 (or 31064 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 1390970090448 in words is "one trillion, three hundred ninety billion, nine hundred seventy million, ninety thousand, four hundred forty-eight".