1154634628 has 36 divisors (see below), whose sum is σ = 2488778460. Its totient is φ = 465733632.

The previous prime is 1154634619. The next prime is 1154634629. The reversal of 1154634628 is 8264364511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 766071684 + 388562944 = 27678^2 + 19712^2 .

It is a super-2 number, since 2×1154634628² = 2666362248353396768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1154634629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169933 + ... + 176596.

It is an arithmetic number, because the mean of its divisors is an integer number (69132735).

Almost surely, 2^1154634628 is an apocalyptic number.

It is an amenable number.

1154634628 is an abundant number, since it is smaller than the sum of its proper divisors (1334143832).

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

1154634628 is a wasteful number, since it uses less digits than its factorization.

1154634628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346564 (or 346555 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 1154634628 is about 33979.9150675807. The cubic root of 1154634628 is about 1049.0951018573.

The spelling of 1154634628 in words is "one billion, one hundred fifty-four million, six hundred thirty-four thousand, six hundred twenty-eight".