403840896534 has 32 divisors (see below), whose sum is σ = 897545424000. Its totient is φ = 134595450792.

The previous prime is 403840896517. The next prime is 403840896539. The reversal of 403840896534 is 435698048304.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403840896539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98524 + ... + 904095.

It is an arithmetic number, because the mean of its divisors is an integer number (28048294500).

Almost surely, 2^403840896534 is an apocalyptic number.

403840896534 is an abundant number, since it is smaller than the sum of its proper divisors (493704527466).

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

403840896534 is a wasteful number, since it uses less digits than its factorization.

403840896534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010089 (or 1010083 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 403840896534 in words is "four hundred three billion, eight hundred forty million, eight hundred ninety-six thousand, five hundred thirty-four".