1341556780 has 24 divisors (see below), whose sum is σ = 2822350608. Its totient is φ = 535654848.

The previous prime is 1341556771. The next prime is 1341556831. The reversal of 1341556780 is 876551431.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49074 + ... + 71353.

It is an arithmetic number, because the mean of its divisors is an integer number (117597942).

Almost surely, 2^1341556780 is an apocalyptic number.

1341556780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1341556780 is an abundant number, since it is smaller than the sum of its proper divisors (1480793828).

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

1341556780 is a wasteful number, since it uses less digits than its factorization.

1341556780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120993 (or 120991 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 1341556780 is about 36627.2682574063. The cubic root of 1341556780 is about 1102.9005487858.

The spelling of 1341556780 in words is "one billion, three hundred forty-one million, five hundred fifty-six thousand, seven hundred eighty".