30146040 has 128 divisors (see below), whose sum is σ = 101836800. Its totient is φ = 7931520.

The previous prime is 30145987. The next prime is 30146057. The reversal of 30146040 is 4064103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111105 + ... + 111375.

It is an arithmetic number, because the mean of its divisors is an integer number (795600).

Almost surely, 2^30146040 is an apocalyptic number.

30146040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30146040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50918400).

30146040 is an abundant number, since it is smaller than the sum of its proper divisors (71690760).

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

30146040 is a wasteful number, since it uses less digits than its factorization.

30146040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30146040 is about 5490.5409569550. The cubic root of 30146040 is about 311.2266349132.

It can be divided in two parts, 30 and 146040, that added together give a triangular number (146070 = T₅₄₀).

The spelling of 30146040 in words is "thirty million, one hundred forty-six thousand, forty".