402236949 has 32 divisors (see below), whose sum is σ = 597058560. Its totient is φ = 239576832.

The previous prime is 402236917. The next prime is 402236957. The reversal of 402236949 is 949632204.

It is not a de Polignac number, because 402236949 - 2⁵ = 402236917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402236969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161814 + ... + 164280.

It is an arithmetic number, because the mean of its divisors is an integer number (18658080).

Almost surely, 2^402236949 is an apocalyptic number.

It is an amenable number.

402236949 is a deficient number, since it is larger than the sum of its proper divisors (194821611).

402236949 is a wasteful number, since it uses less digits than its factorization.

402236949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 402236949 is about 20055.8457562876. The cubic root of 402236949 is about 738.1772457112.

The spelling of 402236949 in words is "four hundred two million, two hundred thirty-six thousand, nine hundred forty-nine".