30497148 has 120 divisors (see below), whose sum is σ = 89443200. Its totient is φ = 8981280.

The previous prime is 30497123. The next prime is 30497177. The reversal of 30497148 is 84179403.

It is a happy number.

It is a super-2 number, since 2×30497148² = 1860152072267808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153153 + ... + 153351.

It is an arithmetic number, because the mean of its divisors is an integer number (745360).

Almost surely, 2^30497148 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 30497148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44721600).

30497148 is an abundant number, since it is smaller than the sum of its proper divisors (58946052).

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

30497148 is a wasteful number, since it uses less digits than its factorization.

30497148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 30497148 is about 5522.4222946095. The cubic root of 30497148 is about 312.4302496061.

The spelling of 30497148 in words is "thirty million, four hundred ninety-seven thousand, one hundred forty-eight".