403749342 has 24 divisors (see below), whose sum is σ = 877597344. Its totient is φ = 134151264.

The previous prime is 403749341. The next prime is 403749347. The reversal of 403749342 is 243947304.

It is a junction number, because it is equal to n+sod(n) for n = 403749297 and 403749306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403749341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30198 + ... + 41465.

It is an arithmetic number, because the mean of its divisors is an integer number (36566556).

Almost surely, 2^403749342 is an apocalyptic number.

403749342 is an abundant number, since it is smaller than the sum of its proper divisors (473848002).

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

403749342 is a wasteful number, since it uses less digits than its factorization.

403749342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71984 (or 71981 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 403749342 is about 20093.5149239748. The cubic root of 403749342 is about 739.1012597738.

The spelling of 403749342 in words is "four hundred three million, seven hundred forty-nine thousand, three hundred forty-two".