1699297044 has 24 divisors (see below), whose sum is σ = 3973603200. Its totient is φ = 565207104.

The previous prime is 1699297037. The next prime is 1699297057. The reversal of 1699297044 is 4407929961.

It is a happy number.

It is a super-2 number, since 2×1699297044² = 5775220887494275872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147369 + ... + 158480.

It is an arithmetic number, because the mean of its divisors is an integer number (165566800).

Almost surely, 2^1699297044 is an apocalyptic number.

It is an amenable number.

1699297044 is an abundant number, since it is smaller than the sum of its proper divisors (2274306156).

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

1699297044 is a wasteful number, since it uses less digits than its factorization.

1699297044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306319 (or 306317 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1699297044 is about 41222.5307811153. The cubic root of 1699297044 is about 1193.3186660772.

The spelling of 1699297044 in words is "one billion, six hundred ninety-nine million, two hundred ninety-seven thousand, forty-four".