4254721390 has 16 divisors (see below), whose sum is σ = 7865485632. Its totient is φ = 1655891424.

The previous prime is 4254721381. The next prime is 4254721403. The reversal of 4254721390 is 931274524.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 5749254 + ... + 5749993.

It is an arithmetic number, because the mean of its divisors is an integer number (491592852).

Almost surely, 2^4254721390 is an apocalyptic number.

4254721390 is a deficient number, since it is larger than the sum of its proper divisors (3610764242).

4254721390 is a wasteful number, since it uses less digits than its factorization.

4254721390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499291.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 4254721390 is about 65228.2254089439. The cubic root of 4254721390 is about 1620.4055010413.

The spelling of 4254721390 in words is "four billion, two hundred fifty-four million, seven hundred twenty-one thousand, three hundred ninety".