100755390 has 32 divisors (see below), whose sum is σ = 245223936. Its totient is φ = 26489120.

The previous prime is 100755383. The next prime is 100755397. The reversal of 100755390 is 93557001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100755383) and next prime (100755397).

It is a super-2 number, since 2×100755390² = 20303297228104200, 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 not an unprimeable number, because it can be changed into a prime (100755397) 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, 21522 + ... + 25781.

It is an arithmetic number, because the mean of its divisors is an integer number (7663248).

Almost surely, 2^100755390 is an apocalyptic number.

100755390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100755390 is an abundant number, since it is smaller than the sum of its proper divisors (144468546).

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

100755390 is a wasteful number, since it uses less digits than its factorization.

100755390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47384.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 100755390 is about 10037.6984413759. The cubic root of 100755390 is about 465.3246894059.

The spelling of 100755390 in words is "one hundred million, seven hundred fifty-five thousand, three hundred ninety".