403799040 has 352 divisors, whose sum is σ = 1509212160. Its totient is φ = 102187008.

The previous prime is 403799029. The next prime is 403799041. The reversal of 403799040 is 40997304.

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

It is a junction number, because it is equal to n+sod(n) for n = 403798986 and 403799004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403799041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3179457 + ... + 3179583.

Almost surely, 2^403799040 is an apocalyptic number.

403799040 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 403799040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754606080).

403799040 is an abundant number, since it is smaller than the sum of its proper divisors (1105413120).

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

403799040 is a wasteful number, since it uses less digits than its factorization.

403799040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 403799040 is about 20094.7515535774. The cubic root of 403799040 is about 739.1315841555.

The spelling of 403799040 in words is "four hundred three million, seven hundred ninety-nine thousand, forty".