902020438 has 32 divisors (see below), whose sum is σ = 1504656000. Its totient is φ = 402093120.

The previous prime is 902020411. The next prime is 902020439. The reversal of 902020438 is 834020209.

It is a super-3 number, since 3×902020438³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (902020439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049653 + ... + 1050511.

It is an arithmetic number, because the mean of its divisors is an integer number (47020500).

Almost surely, 2^902020438 is an apocalyptic number.

902020438 is a deficient number, since it is larger than the sum of its proper divisors (602635562).

902020438 is a wasteful number, since it uses less digits than its factorization.

902020438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 902020438 is about 30033.6550889165. The cubic root of 902020438 is about 966.2113303543.

The spelling of 902020438 in words is "nine hundred two million, twenty thousand, four hundred thirty-eight".