1402573 has 4 divisors (see below), whose sum is σ = 1425628. Its totient is φ = 1379520.

The previous prime is 1402571. The next prime is 1402589. The reversal of 1402573 is 3752041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3752041 = 571 ⋅6571.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 879844 = 723^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402573 - 2¹ = 1402571 is a prime.

It is a super-2 number, since 2×1402573² = 3934422040658, which contains 22 as substring.

It is a Duffinian number.

1402573 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402571) 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, 11436 + ... + 11557.

It is an arithmetic number, because the mean of its divisors is an integer number (356407).

2^1402573 is an apocalyptic number.

It is an amenable number.

1402573 is a deficient number, since it is larger than the sum of its proper divisors (23055).

1402573 is an equidigital number, since it uses as much as digits as its factorization.

1402573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23054.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 1402573 is about 1184.3027484558. The cubic root of 1402573 is about 111.9373852818.

The spelling of 1402573 in words is "one million, four hundred two thousand, five hundred seventy-three".