402738 has 32 divisors (see below), whose sum is σ = 946176. Its totient is φ = 111888.

The previous prime is 402697. The next prime is 402739. The reversal of 402738 is 837204.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402738.

It is not an unprimeable number, because it can be changed into a prime (402739) 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, 1695 + ... + 1917.

It is an arithmetic number, because the mean of its divisors is an integer number (29568).

2⁴⁰²⁷³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473088).

402738 is an abundant number, since it is smaller than the sum of its proper divisors (543438).

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

402738 is a wasteful number, since it uses less digits than its factorization.

402738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 402738 is about 634.6164195796. The cubic root of 402738 is about 73.8483624807.

The spelling of 402738 in words is "four hundred two thousand, seven hundred thirty-eight".