1142877190 has 64 divisors (see below), whose sum is σ = 2680884864. Its totient is φ = 340420608.

The previous prime is 1142877181. The next prime is 1142877209. The reversal of 1142877190 is 917782411.

It is a super-2 number, since 2×1142877190² = 2612336542844592200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21469 + ... + 52408.

It is an arithmetic number, because the mean of its divisors is an integer number (41888826).

Almost surely, 2^1142877190 is an apocalyptic number.

1142877190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142877190 is an abundant number, since it is smaller than the sum of its proper divisors (1538007674).

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

1142877190 is a wasteful number, since it uses less digits than its factorization.

1142877190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73921.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1142877190 is about 33806.4666890818. The cubic root of 1142877190 is about 1045.5220303324.

The spelling of 1142877190 in words is "one billion, one hundred forty-two million, eight hundred seventy-seven thousand, one hundred ninety".