402206136 has 32 divisors (see below), whose sum is σ = 1058438400. Its totient is φ = 127012320.

The previous prime is 402206099. The next prime is 402206137. The reversal of 402206136 is 631602204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402206137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440560 + ... + 441471.

It is an arithmetic number, because the mean of its divisors is an integer number (33076200).

Almost surely, 2^402206136 is an apocalyptic number.

It is an amenable number.

402206136 is an abundant number, since it is smaller than the sum of its proper divisors (656232264).

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

402206136 is a wasteful number, since it uses less digits than its factorization.

402206136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882059 (or 882055 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 402206136 is about 20055.0775615553. The cubic root of 402206136 is about 738.1583960950.

The spelling of 402206136 in words is "four hundred two million, two hundred six thousand, one hundred thirty-six".