402701940 has 144 divisors (see below), whose sum is σ = 1283458176. Its totient is φ = 102009600.

The previous prime is 402701911. The next prime is 402701983. The reversal of 402701940 is 49107204.

It is a happy number.

402701940 is a `hidden beast` number, since 402 + 70 + 194 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 873310 + ... + 873770.

It is an arithmetic number, because the mean of its divisors is an integer number (8912904).

Almost surely, 2^402701940 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 402701940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641729088).

402701940 is an abundant number, since it is smaller than the sum of its proper divisors (880756236).

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

402701940 is a wasteful number, since it uses less digits than its factorization.

402701940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 402701940 is about 20067.4348136477. The cubic root of 402701940 is about 738.4615835837.

The spelling of 402701940 in words is "four hundred two million, seven hundred one thousand, nine hundred forty".