403352730 has 128 divisors (see below), whose sum is σ = 1191490560. Its totient is φ = 96275520.

The previous prime is 403352723. The next prime is 403352753. The reversal of 403352730 is 37253304.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 403352694 and 403352703.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197977 + ... + 200003.

It is an arithmetic number, because the mean of its divisors is an integer number (9308520).

Almost surely, 2^403352730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403352730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595745280).

403352730 is an abundant number, since it is smaller than the sum of its proper divisors (788137830).

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

403352730 is a wasteful number, since it uses less digits than its factorization.

403352730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 403352730 is about 20083.6433447719. The cubic root of 403352730 is about 738.8591685920.

The spelling of 403352730 in words is "four hundred three million, three hundred fifty-two thousand, seven hundred thirty".