1642136324 has 12 divisors (see below), whose sum is σ = 2884423500. Its totient is φ = 818015328.

The previous prime is 1642136311. The next prime is 1642136333. The reversal of 1642136324 is 4236312461.

It can be written as a sum of positive squares in 2 ways, for example, as 31719424 + 1610416900 = 5632^2 + 40130^2 .

It is a super-2 number, since 2×1642136324² = 5393223413200465952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761999 + ... + 764150.

It is an arithmetic number, because the mean of its divisors is an integer number (240368625).

Almost surely, 2^1642136324 is an apocalyptic number.

It is an amenable number.

1642136324 is a deficient number, since it is larger than the sum of its proper divisors (1242287176).

1642136324 is a wasteful number, since it uses less digits than its factorization.

1642136324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526422 (or 1526420 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 1642136324 is about 40523.2812590491. The cubic root of 1642136324 is about 1179.7855408397.

Adding to 1642136324 its reverse (4236312461), we get a palindrome (5878448785).

The spelling of 1642136324 in words is "one billion, six hundred forty-two million, one hundred thirty-six thousand, three hundred twenty-four".