721430150 has 48 divisors (see below), whose sum is σ = 1540422240. Its totient is φ = 246240000.

The previous prime is 721430131. The next prime is 721430153. The reversal of 721430150 is 51034127.

It is a super-2 number, since 2×721430150² = 1040922922658045000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721430153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75650 + ... + 84650.

It is an arithmetic number, because the mean of its divisors is an integer number (32092130).

Almost surely, 2^721430150 is an apocalyptic number.

721430150 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

721430150 is an abundant number, since it is smaller than the sum of its proper divisors (818992090).

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

721430150 is a wasteful number, since it uses less digits than its factorization.

721430150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9249 (or 9244 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 721430150 is about 26859.4517814493. The cubic root of 721430150 is about 896.8739902541.

Adding to 721430150 its reverse (51034127), we get a palindrome (772464277).

The spelling of 721430150 in words is "seven hundred twenty-one million, four hundred thirty thousand, one hundred fifty".