1878480 has 60 divisors (see below), whose sum is σ = 6310980. Its totient is φ = 500736.

The previous prime is 1878463. The next prime is 1878491. The reversal of 1878480 is 848781.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 1089936 = 888^2 + 1044^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×1878480² = 7057374220800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 585 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (105183).

2^1878480 is an apocalyptic number.

1878480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878480 is an abundant number, since it is smaller than the sum of its proper divisors (4432500).

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

1878480 is a wasteful number, since it uses less digits than its factorization.

1878480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2619 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 1878480 is about 1370.5765210305. The cubic root of 1878480 is about 123.3868447284.

The spelling of 1878480 in words is "one million, eight hundred seventy-eight thousand, four hundred eighty".