840425030 has 16 divisors (see below), whose sum is σ = 1553651280. Its totient is φ = 327084192.

The previous prime is 840425029. The next prime is 840425063. The reversal of 840425030 is 30524048.

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, 1135340 + ... + 1136079.

It is an arithmetic number, because the mean of its divisors is an integer number (97103205).

Almost surely, 2^840425030 is an apocalyptic number.

840425030 is a deficient number, since it is larger than the sum of its proper divisors (713226250).

840425030 is a wasteful number, since it uses less digits than its factorization.

840425030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271463.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 840425030 is about 28990.0850291958. The cubic root of 840425030 is about 943.6979090293.

Adding to 840425030 its reverse (30524048), we get a palindrome (870949078).

The spelling of 840425030 in words is "eight hundred forty million, four hundred twenty-five thousand, thirty".