1233345690 has 80 divisors (see below), whose sum is σ = 3348753408. Its totient is φ = 325677024.

The previous prime is 1233345667. The next prime is 1233345719. The reversal of 1233345690 is 965433321.

It is a happy number.

It is a super-2 number, since 2×1233345690² = 3042283182083152200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 76039 + ... + 90821.

Almost surely, 2^1233345690 is an apocalyptic number.

1233345690 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 1233345690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674376704).

1233345690 is an abundant number, since it is smaller than the sum of its proper divisors (2115407718).

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

1233345690 is a wasteful number, since it uses less digits than its factorization.

1233345690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14905 (or 14896 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 1233345690 is about 35119.0217688363. The cubic root of 1233345690 is about 1072.4118564169.

The spelling of 1233345690 in words is "one billion, two hundred thirty-three million, three hundred forty-five thousand, six hundred ninety".