1001142402 has 32 divisors (see below), whose sum is σ = 2157650880. Its totient is φ = 307851840.

The previous prime is 1001142391. The next prime is 1001142403. The reversal of 1001142402 is 2042411001.

It is a super-2 number, since 2×1001142402² = 2004572218164659208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001142403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170349 + ... + 176127.

It is an arithmetic number, because the mean of its divisors is an integer number (67426590).

Almost surely, 2^1001142402 is an apocalyptic number.

1001142402 is an abundant number, since it is smaller than the sum of its proper divisors (1156508478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001142402 is a wasteful number, since it uses less digits than its factorization.

1001142402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1001142402 is about 31640.8344074552. The cubic root of 1001142402 is about 1000.3806557495.

Adding to 1001142402 its reverse (2042411001), we get a palindrome (3043553403).

The spelling of 1001142402 in words is "one billion, one million, one hundred forty-two thousand, four hundred two".