1442157100 has 36 divisors (see below), whose sum is σ = 3133393200. Its totient is φ = 576141760.

The previous prime is 1442157097. The next prime is 1442157131. The reversal of 1442157100 is 17512441.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75306 + ... + 92494.

It is an arithmetic number, because the mean of its divisors is an integer number (87038700).

Almost surely, 2^1442157100 is an apocalyptic number.

1442157100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442157100 is an abundant number, since it is smaller than the sum of its proper divisors (1691236100).

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

1442157100 is a wasteful number, since it uses less digits than its factorization.

1442157100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18042 (or 18035 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1442157100 is about 37975.7435740237. The cubic root of 1442157100 is about 1129.8068168986.

Adding to 1442157100 its reverse (17512441), we get a palindrome (1459669541).

The spelling of 1442157100 in words is "one billion, four hundred forty-two million, one hundred fifty-seven thousand, one hundred".