1153420770 has 32 divisors (see below), whose sum is σ = 2863667520. Its totient is φ = 296972480.

The previous prime is 1153420769. The next prime is 1153420787. The reversal of 1153420770 is 770243511.

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

It is a Curzon 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, 662016 + ... + 663755.

It is an arithmetic number, because the mean of its divisors is an integer number (89489610).

Almost surely, 2^1153420770 is an apocalyptic number.

1153420770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153420770 is an abundant number, since it is smaller than the sum of its proper divisors (1710246750).

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

1153420770 is a wasteful number, since it uses less digits than its factorization.

1153420770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325810.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1153420770 is about 33962.0489664567. The cubic root of 1153420770 is about 1048.7273379001.

The spelling of 1153420770 in words is "one billion, one hundred fifty-three million, four hundred twenty thousand, seven hundred seventy".