1142902740 has 48 divisors (see below), whose sum is σ = 3657290112. Its totient is φ = 261234816.

The previous prime is 1142902681. The next prime is 1142902753. The reversal of 1142902740 is 472092411.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1142902698 and 1142902707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360179 + ... + 1361018.

It is an arithmetic number, because the mean of its divisors is an integer number (76193544).

Almost surely, 2^1142902740 is an apocalyptic number.

1142902740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142902740 is an abundant number, since it is smaller than the sum of its proper divisors (2514387372).

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

1142902740 is a wasteful number, since it uses less digits than its factorization.

1142902740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721216 (or 2721214 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1142902740 is about 33806.8445732517. The cubic root of 1142902740 is about 1045.5298214549.

The spelling of 1142902740 in words is "one billion, one hundred forty-two million, nine hundred two thousand, seven hundred forty".