402369243 has 32 divisors (see below), whose sum is σ = 588994560. Its totient is φ = 243233280.

The previous prime is 402369241. The next prime is 402369263. The reversal of 402369243 is 342963204.

It is not a de Polignac number, because 402369243 - 2¹ = 402369241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402369241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484953 + ... + 485781.

It is an arithmetic number, because the mean of its divisors is an integer number (18406080).

Almost surely, 2^402369243 is an apocalyptic number.

402369243 is a deficient number, since it is larger than the sum of its proper divisors (186625317).

402369243 is a wasteful number, since it uses less digits than its factorization.

402369243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 402369243 is about 20059.1436257882. The cubic root of 402369243 is about 738.2581646127.

The spelling of 402369243 in words is "four hundred two million, three hundred sixty-nine thousand, two hundred forty-three".