1290740976 has 240 divisors, whose sum is σ = 4281781504. Its totient is φ = 355332096.

The previous prime is 1290740951. The next prime is 1290740981. The reversal of 1290740976 is 6790470921.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4204215 + ... + 4204521.

Almost surely, 2^1290740976 is an apocalyptic number.

1290740976 is a gapful number since it is divisible by the number (16) 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 1290740976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2140890752).

1290740976 is an abundant number, since it is smaller than the sum of its proper divisors (2991040528).

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

1290740976 is a wasteful number, since it uses less digits than its factorization.

1290740976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1290740976 is about 35926.8837501946. The cubic root of 1290740976 is about 1088.7956217276.

The spelling of 1290740976 in words is "one billion, two hundred ninety million, seven hundred forty thousand, nine hundred seventy-six".