7238898428 has 24 divisors (see below), whose sum is σ = 12712170240. Its totient is φ = 3606870960.

The previous prime is 7238898427. The next prime is 7238898449. The reversal of 7238898428 is 8248988327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7238898421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934183 + ... + 1937921.

It is an arithmetic number, because the mean of its divisors is an integer number (529673760).

Almost surely, 2^7238898428 is an apocalyptic number.

It is an amenable number.

7238898428 is a deficient number, since it is larger than the sum of its proper divisors (5473271812).

7238898428 is a wasteful number, since it uses less digits than its factorization.

7238898428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297 (or 5295 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 59.

The square root of 7238898428 is about 85081.7161792121. The cubic root of 7238898428 is about 1934.4499348319.

The spelling of 7238898428 in words is "seven billion, two hundred thirty-eight million, eight hundred ninety-eight thousand, four hundred twenty-eight".