1374497280 has 360 divisors, whose sum is σ = 5169214908. Its totient is φ = 337379328.

The previous prime is 1374497269. The next prime is 1374497287. The reversal of 1374497280 is 827944731.

1374497280 is a `hidden beast` number, since 13 + 74 + 497 + 2 + 80 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 102576384 + 1271920896 = 10128^2 + 35664^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1374497287) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3893584 + ... + 3893936.

Almost surely, 2^1374497280 is an apocalyptic number.

1374497280 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 1374497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2584607454).

1374497280 is an abundant number, since it is smaller than the sum of its proper divisors (3794717628).

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

1374497280 is a wasteful number, since it uses less digits than its factorization.

1374497280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 1374497280 is about 37074.2131406723. The cubic root of 1374497280 is about 1111.8545088536.

The spelling of 1374497280 in words is "one billion, three hundred seventy-four million, four hundred ninety-seven thousand, two hundred eighty".