402736243 has 24 divisors (see below), whose sum is σ = 507866352. Its totient is φ = 316540224.

The previous prime is 402736223. The next prime is 402736249. The reversal of 402736243 is 342637204.

It is not a de Polignac number, because 402736243 - 2¹⁷ = 402605171 is a prime.

402736243 is a modest number, since divided by 36243 gives 4027 as remainder.

It is not an unprimeable number, because it can be changed into a prime (402736249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97996 + ... + 102022.

It is an arithmetic number, because the mean of its divisors is an integer number (21161098).

Almost surely, 2^402736243 is an apocalyptic number.

402736243 is a deficient number, since it is larger than the sum of its proper divisors (105130109).

402736243 is a wasteful number, since it uses less digits than its factorization.

402736243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 402736243 is about 20068.2894886435. The cubic root of 402736243 is about 738.4825508931.

It can be divided in two parts, 4027 and 36243, that multiplied together give a square (145950561 = 12081²).

The spelling of 402736243 in words is "four hundred two million, seven hundred thirty-six thousand, two hundred forty-three".