1260981400 has 48 divisors (see below), whose sum is σ = 3350611440. Its totient is φ = 432336000.

The previous prime is 1260981383. The next prime is 1260981419. The reversal of 1260981400 is 41890621.

It is a happy number.

1260981400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1260981400² = 3180148182291920000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) 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 11 ways as a sum of consecutive naturals, for example, 448951 + ... + 451750.

It is an arithmetic number, because the mean of its divisors is an integer number (69804405).

Almost surely, 2^1260981400 is an apocalyptic number.

1260981400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260981400 is an abundant number, since it is smaller than the sum of its proper divisors (2089630040).

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

1260981400 is a wasteful number, since it uses less digits than its factorization.

1260981400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900724 (or 900715 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1260981400 is about 35510.2999142502. The cubic root of 1260981400 is about 1080.3626468481.

The spelling of 1260981400 in words is "one billion, two hundred sixty million, nine hundred eighty-one thousand, four hundred".