1154920620 has 96 divisors (see below), whose sum is σ = 3856462848. Its totient is φ = 252502272.

The previous prime is 1154920603. The next prime is 1154920649. The reversal of 1154920620 is 260294511.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50119 + ... + 69438.

It is an arithmetic number, because the mean of its divisors is an integer number (40171488).

Almost surely, 2^1154920620 is an apocalyptic number.

1154920620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154920620 is an abundant number, since it is smaller than the sum of its proper divisors (2701542228).

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

1154920620 is a wasteful number, since it uses less digits than its factorization.

1154920620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119599 (or 119597 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1154920620 is about 33984.1230576868. The cubic root of 1154920620 is about 1049.1817116617.

The spelling of 1154920620 in words is "one billion, one hundred fifty-four million, nine hundred twenty thousand, six hundred twenty".