1045426590 has 192 divisors, whose sum is σ = 3116340864. Its totient is φ = 241173504.

The previous prime is 1045426589. The next prime is 1045426633. The reversal of 1045426590 is 956245401.

1045426590 is a `hidden beast` number, since 1 + 0 + 45 + 4 + 26 + 590 = 666.

1045426590 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1425864 + ... + 1426596.

It is an arithmetic number, because the mean of its divisors is an integer number (16230942).

Almost surely, 2^1045426590 is an apocalyptic number.

1045426590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045426590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1558170432).

1045426590 is an abundant number, since it is smaller than the sum of its proper divisors (2070914274).

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

1045426590 is a wasteful number, since it uses less digits than its factorization.

1045426590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1045426590 is about 32333.0572324981. The cubic root of 1045426590 is about 1014.9185274377.

The spelling of 1045426590 in words is "one billion, forty-five million, four hundred twenty-six thousand, five hundred ninety".