1501428 has 12 divisors (see below), whose sum is σ = 3503360. Its totient is φ = 500472.

The previous prime is 1501427. The next prime is 1501429. The reversal of 1501428 is 8241051.

It is an interprime number because it is at equal distance from previous prime (1501427) and next prime (1501429).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62548 + ... + 62571.

2^1501428 is an apocalyptic number.

It is an amenable number.

1501428 is an abundant number, since it is smaller than the sum of its proper divisors (2001932).

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

1501428 is a wasteful number, since it uses less digits than its factorization.

1501428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125126 (or 125124 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1501428 is about 1225.3277112675. The cubic root of 1501428 is about 114.5077383327.

Adding to 1501428 its reverse (8241051), we get a palindrome (9742479).

The spelling of 1501428 in words is "one million, five hundred one thousand, four hundred twenty-eight".