1102402442 has 4 divisors (see below), whose sum is σ = 1653603666. Its totient is φ = 551201220.

The previous prime is 1102402429. The next prime is 1102402447. The reversal of 1102402442 is 2442042011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1063477321 + 38925121 = 32611^2 + 6239^2 .

It is a super-2 number, since 2×1102402442² = 2430582288255126728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1102402447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275600609 + ... + 275600612.

Almost surely, 2^1102402442 is an apocalyptic number.

1102402442 is a deficient number, since it is larger than the sum of its proper divisors (551201224).

1102402442 is an equidigital number, since it uses as much as digits as its factorization.

1102402442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551201223.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1102402442 is about 33202.4463255345. The cubic root of 1102402442 is about 1033.0310820703.

Adding to 1102402442 its reverse (2442042011), we get a palindrome (3544444453).

The spelling of 1102402442 in words is "one billion, one hundred two million, four hundred two thousand, four hundred forty-two".