1972429 has 8 divisors (see below), whose sum is σ = 2031840. Its totient is φ = 1914000.

The previous prime is 1972423. The next prime is 1972441. The reversal of 1972429 is 9242791.

1972429 = T₂₆ + T₂₇ + ... + T₂₂₇.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1972429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1972394 and 1972403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5794 + ... + 6124.

It is an arithmetic number, because the mean of its divisors is an integer number (253980).

2^1972429 is an apocalyptic number.

It is an amenable number.

1972429 is a deficient number, since it is larger than the sum of its proper divisors (59411).

1972429 is a wasteful number, since it uses less digits than its factorization.

1972429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its digits is 9072, while the sum is 34.

The square root of 1972429 is about 1404.4319136220. The cubic root of 1972429 is about 125.4104693109.

It can be divided in two parts, 1972 and 429, that added together give a 4-th power (2401 = 7⁴).

The spelling of 1972429 in words is "one million, nine hundred seventy-two thousand, four hundred twenty-nine".