402673040 has 160 divisors (see below), whose sum is σ = 1178496000. Its totient is φ = 124300800.

The previous prime is 402673009. The next prime is 402673057. The reversal of 402673040 is 40376204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 806711 + ... + 807209.

It is an arithmetic number, because the mean of its divisors is an integer number (7365600).

Almost surely, 2^402673040 is an apocalyptic number.

402673040 is a gapful number since it is divisible by the number (40) 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 402673040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589248000).

402673040 is an abundant number, since it is smaller than the sum of its proper divisors (775822960).

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

402673040 is a wasteful number, since it uses less digits than its factorization.

402673040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 402673040 is about 20066.7147286246. The cubic root of 402673040 is about 738.4439178710.

The spelling of 402673040 in words is "four hundred two million, six hundred seventy-three thousand, forty".