403412940 has 384 divisors, whose sum is σ = 1557964800. Its totient is φ = 84602880.

The previous prime is 403412923. The next prime is 403412969. The reversal of 403412940 is 49214304.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2944552 + ... + 2944688.

It is an arithmetic number, because the mean of its divisors is an integer number (4057200).

Almost surely, 2^403412940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403412940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (778982400).

403412940 is an abundant number, since it is smaller than the sum of its proper divisors (1154551860).

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

403412940 is a wasteful number, since it uses less digits than its factorization.

403412940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 403412940 is about 20085.1422698471. The cubic root of 403412940 is about 738.8959308713.

The spelling of 403412940 in words is "four hundred three million, four hundred twelve thousand, nine hundred forty".