402307074 has 120 divisors (see below), whose sum is σ = 1032835188. Its totient is φ = 116328960.

The previous prime is 402307069. The next prime is 402307079. The reversal of 402307074 is 470703204.

It is an interprime number because it is at equal distance from previous prime (402307069) and next prime (402307079).

It can be written as a sum of positive squares in 6 ways, for example, as 300155625 + 102151449 = 17325^2 + 10107^2 .

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

It is not an unprimeable number, because it can be changed into a prime (402307079) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 608304 + ... + 608964.

Almost surely, 2^402307074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402307074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516417594).

402307074 is an abundant number, since it is smaller than the sum of its proper divisors (630528114).

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

402307074 is a wasteful number, since it uses less digits than its factorization.

402307074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 402307074 is about 20057.5939234994. The cubic root of 402307074 is about 738.2201405534.

The spelling of 402307074 in words is "four hundred two million, three hundred seven thousand, seventy-four".