1225437330 has 64 divisors (see below), whose sum is σ = 3172296960. Its totient is φ = 301168896.

The previous prime is 1225437307. The next prime is 1225437341. The reversal of 1225437330 is 337345221.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287656 + ... + 291884.

It is an arithmetic number, because the mean of its divisors is an integer number (49567140).

Almost surely, 2^1225437330 is an apocalyptic number.

1225437330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225437330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586148480).

1225437330 is an abundant number, since it is smaller than the sum of its proper divisors (1946859630).

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

1225437330 is a wasteful number, since it uses less digits than its factorization.

1225437330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 1225437330 is about 35006.2470139260. The cubic root of 1225437330 is about 1070.1147953816.

The spelling of 1225437330 in words is "one billion, two hundred twenty-five million, four hundred thirty-seven thousand, three hundred thirty".