901944380 has 48 divisors (see below), whose sum is σ = 1959525120. Its totient is φ = 348364800.

The previous prime is 901944361. The next prime is 901944389. The reversal of 901944380 is 83449109.

It is a super-2 number, since 2×901944380² = 1627007329227168800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901944389) 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, 334076 + ... + 336764.

It is an arithmetic number, because the mean of its divisors is an integer number (40823440).

Almost surely, 2^901944380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 901944380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979762560).

901944380 is an abundant number, since it is smaller than the sum of its proper divisors (1057580740).

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

901944380 is a wasteful number, since it uses less digits than its factorization.

901944380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3268 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 901944380 is about 30032.3888493739. The cubic root of 901944380 is about 966.1841727409.

The spelling of 901944380 in words is "nine hundred one million, nine hundred forty-four thousand, three hundred eighty".