400783080 has 32 divisors (see below), whose sum is σ = 1202349600. Its totient is φ = 106875456.

The previous prime is 400783069. The next prime is 400783127. The reversal of 400783080 is 80387004.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1669810 + ... + 1670049.

It is an arithmetic number, because the mean of its divisors is an integer number (37573425).

Almost surely, 2^400783080 is an apocalyptic number.

400783080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400783080 is an abundant number, since it is smaller than the sum of its proper divisors (801566520).

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

400783080 is a wasteful number, since it uses less digits than its factorization.

400783080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339873 (or 3339869 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 400783080 is about 20019.5674278941. The cubic root of 400783080 is about 737.2868015359.

The spelling of 400783080 in words is "four hundred million, seven hundred eighty-three thousand, eighty".