402236546 has 8 divisors (see below), whose sum is σ = 619661820. Its totient is φ = 195682608.

The previous prime is 402236543. The next prime is 402236579. The reversal of 402236546 is 645632204.

It can be written as a sum of positive squares in 2 ways, for example, as 362483521 + 39753025 = 19039^2 + 6305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (402236543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2717741 + ... + 2717888.

Almost surely, 2^402236546 is an apocalyptic number.

402236546 is a deficient number, since it is larger than the sum of its proper divisors (217425274).

402236546 is a wasteful number, since it uses less digits than its factorization.

402236546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435668.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 402236546 is about 20055.8357093391. The cubic root of 402236546 is about 738.1769991852.

The spelling of 402236546 in words is "four hundred two million, two hundred thirty-six thousand, five hundred forty-six".