1369878480 has 280 divisors, whose sum is σ = 4849877088. Its totient is φ = 359624448.

The previous prime is 1369878469. The next prime is 1369878487. The reversal of 1369878480 is 848789631.

1369878480 is a `hidden beast` number, since 1 + 3 + 6 + 98 + 78 + 480 = 666.

It is a super-2 number, since 2×1369878480² = 3753134099934220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369878487) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4840419 + ... + 4840701.

Almost surely, 2^1369878480 is an apocalyptic number.

1369878480 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 1369878480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2424938544).

1369878480 is an abundant number, since it is smaller than the sum of its proper divisors (3479998608).

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

1369878480 is an equidigital number, since it uses as much as digits as its factorization.

1369878480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 1369878480 is about 37011.8694475164. The cubic root of 1369878480 is about 1110.6077022968.

The spelling of 1369878480 in words is "one billion, three hundred sixty-nine million, eight hundred seventy-eight thousand, four hundred eighty".