690041430 has 160 divisors (see below), whose sum is σ = 2103948000. Its totient is φ = 160869888.

The previous prime is 690041389. The next prime is 690041459. The reversal of 690041430 is 34140096.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 690041394 and 690041403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 198346 + ... + 201794.

It is an arithmetic number, because the mean of its divisors is an integer number (13149675).

Almost surely, 2^690041430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690041430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051974000).

690041430 is an abundant number, since it is smaller than the sum of its proper divisors (1413906570).

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

690041430 is a wasteful number, since it uses less digits than its factorization.

690041430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500 (or 3491 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 690041430 is about 26268.6396678625. The cubic root of 690041430 is about 883.6732778048.

The spelling of 690041430 in words is "six hundred ninety million, forty-one thousand, four hundred thirty".