1142849970 has 48 divisors (see below), whose sum is σ = 2977235352. Its totient is φ = 304162560.

The previous prime is 1142849957. The next prime is 1142849977. The reversal of 1142849970 is 799482411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 704743209 + 438106761 = 26547^2 + 20931^2 .

It is a super-2 number, since 2×1142849970² = 2612212107858001800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1142849977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34704 + ... + 59076.

Almost surely, 2^1142849970 is an apocalyptic number.

1142849970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142849970 is an abundant number, since it is smaller than the sum of its proper divisors (1834385382).

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

1142849970 is a wasteful number, since it uses less digits than its factorization.

1142849970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24907 (or 24904 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1142849970 is about 33806.0641009864. The cubic root of 1142849970 is about 1045.5137298384.

The spelling of 1142849970 in words is "one billion, one hundred forty-two million, eight hundred forty-nine thousand, nine hundred seventy".