101944380 has 24 divisors (see below), whose sum is σ = 285444432. Its totient is φ = 27185152.

The previous prime is 101944379. The next prime is 101944397. The reversal of 101944380 is 83449101.

It is a happy number.

It is a super-2 number, since 2×101944380² = 20785313227168800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 849477 + ... + 849596.

It is an arithmetic number, because the mean of its divisors is an integer number (11893518).

Almost surely, 2^101944380 is an apocalyptic number.

101944380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101944380 is an abundant number, since it is smaller than the sum of its proper divisors (183500052).

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

101944380 is a wasteful number, since it uses less digits than its factorization.

101944380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699085 (or 1699083 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 101944380 is about 10096.7509625622. The cubic root of 101944380 is about 467.1479309485.

The spelling of 101944380 in words is "one hundred one million, nine hundred forty-four thousand, three hundred eighty".