769455090 has 48 divisors (see below), whose sum is σ = 2009449728. Its totient is φ = 204278688.

The previous prime is 769455019. The next prime is 769455091. The reversal of 769455090 is 90554967.

It is a happy number.

769455090 is a `hidden beast` number, since 7 + 6 + 9 + 4 + 550 + 90 = 666.

It is a super-2 number, since 2×769455090² = 1184122271053816200, 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 (769455091) 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, 1599 + ... + 39261.

It is an arithmetic number, because the mean of its divisors is an integer number (41863536).

Almost surely, 2^769455090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769455090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004724864).

769455090 is an abundant number, since it is smaller than the sum of its proper divisors (1239994638).

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

769455090 is a wasteful number, since it uses less digits than its factorization.

769455090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37903 (or 37900 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 769455090 is about 27739.0535166577. The cubic root of 769455090 is about 916.3493841138.

The spelling of 769455090 in words is "seven hundred sixty-nine million, four hundred fifty-five thousand, ninety".