1154649790 has 64 divisors (see below), whose sum is σ = 2517298560. Its totient is φ = 372879360.

The previous prime is 1154649773. The next prime is 1154649791. The reversal of 1154649790 is 979464511.

1154649790 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1154649790² = 2666432275094088200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1154649790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154649791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76294 + ... + 90166.

It is an arithmetic number, because the mean of its divisors is an integer number (39332790).

Almost surely, 2^1154649790 is an apocalyptic number.

1154649790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1154649790 is an abundant number, since it is smaller than the sum of its proper divisors (1362648770).

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

1154649790 is a wasteful number, since it uses less digits than its factorization.

1154649790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13957.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1154649790 is about 33980.1381692306. The cubic root of 1154649790 is about 1049.0996938757.

The spelling of 1154649790 in words is "one billion, one hundred fifty-four million, six hundred forty-nine thousand, seven hundred ninety".